I don't have much saddle-time in it, but for my rider's class, we spent about 10 hours in the rain. Just a note on the color - I pick high-viz yellow everything when I can get it. People can point and laugh all they want, because it means they see me. Check out this pict - how many people can you easily see? Just let that sink in when picking out your gear.

Rode 400 miles in pouring rain from Northern Utah to Los Angeles. Only wet place was around my neck. Stopped water entry, very wind proof, doubles as extra insulation/wind protection if the temps drop.

Built around the keep it simple idea, not many frills but is perfect for a rain suit to keep in your luggage and forget. Hi Viz colors were just that, got comments at gas stops from other motorists to this effect. Thigh pocket worked for ID/Credit Card to make fuel stops in the rain less painful.

Fit a bit large, but same size suit as my jacket size fit over jacket/armored pants/off-road boots and a slim hydration pack comfortably.

Seems to be of high quality but have yet to wear it in a downpour.

Boot straps keep the legs in place, and pants are well-long to cover all the way. (Note: I'm fairly short)
Jacket has a zipper PLUS velcro closure for a good seal, and a loose-fitting high collar to keep your neck dry and warm. Also to be noted, that high collar is PLUSH-lined so you don't have rainsuit material against your neck... a nice feature but may prove to be a bit warm on a hot rainy day.
Otherwise the jacket has a mesh liner to fight that 'stuck-to' feel.
Cinch-straps at waist and the cuffs help to customize the fit, but it would be nice if there were also straps at the elbow to minimize windflapping.

As for sizing, order the size you think you need, or the next size UP.
I'm not a tall guy, but I wear an XL leather jacket.
I first ordered a size LG in this, thinking I wanted it to fit kindof snug, and didn't want the pants to be crazy long. ....but I sent it back because the pants were too tight in the knee area when in riding position plus very tight in the waist, and the jacket was just a tad tight in the shoulders.
I then got the XL, and am happy with it.
Pants now have plenty of room for normal movement and position, but not too much extra material.... and the jacket now fits a lot more like it should, and I'll be able to get armored leather under it. (No way that would have happened with the large.)

Good-looking for a rain suit!

By the way, as cool as you think you are, please don't get the all black one. Be seen... not hit- in poor visibility conditions.
Black leather, black helmet... ok- I'm with you.
But a black rain suit?? Be smarter than that.

Great jacket. I keep it under my seat in case of rain, but I have also used it when it got cold the other night and I had a spring coat on. Stores pretty small in a bag they send you. Fits over regular coat like they said. One review suggested the high vis version, and I couldn't agree more. I wanted black but as the other rider said, if you're already riding in bad conditions, its better to be seen than to look cool. I totally agree, but also, now that I've worn it, the high vis looks cool too.

I used this rain suit on a trip to Las Vegas - 7 hours in the rain (and snow) on the way to Vegas, and 4 hours in the rain (and more snow!) on the way back. All along I-15, 50-70 MPH, heavy rain. I stayed completely dry and comfortable.

I has ZERO air flow through it - which is good! That's why it stays nice and dry. And as a result I use it as an outer "thermal" layer as well, over my normal Olympia one-piece suit. It completely eliminates air through the suit, making a 40 degree, 60 MPH cold morning ride something that feels great.

Wore it the first time in 30 mins of torrents of rain. Kept me dry. I hadn't any waterproof boots and was only wearing sneakers, so the feet got wet. Good value and the high via is just what I wanted

In my opinion you will not find a rain suit that lasts very long. one season or two if you are lucky or don't ride often. I think this rain suit scores well in longevity for the price. Revzilla reminded me yesterday that I have owned this rain suit for 90 days. In that time I estimate that I have used it between 10 and 15 times. I think this suit's life is about half over.
So far it has done it's job and has been waterproof. out of those 10-15 wet rides, 2 have been absolute downpours. I have been happy with the waterproofing.
So far there have been no major failures. Threads are starting to hang from the stitching around the waist.
I do recommend it because by the time it is worn through I expect it to have been worth the money.

I bought this for a trip from Wisconsin to North Carolina and back. It only rained a couple of times. This rain suit kept me dry and kept me cruising.

Kept me very dry in 3 days of riding in heavy downpours. Jacket is very comfortable and well made. The lining and neck cuff are really nice for this price. Pants will keep you dry but there is nothing to hold them up except the small amount of elastic in the waist. No drawstring or Velcro belt, so if you buy it bigger (like you should for rain gear) the pants will keep falling down. I'm trying to find some suspenders that won't rip the material to use with them. Besides that issue, you really can't beat this suit for dryness/cost ratio.

I've only had a chance to use it once so far, during a fairly heavy rain, and it kept me completely dry. I ordered a medium and it is a little large (I'm 5'10", 145 lbs), but that's OK as it easily fits over my regular riding gear. Easy to get on and off quickly. Great rain suit for the price, seems to be high quality and should last for quite a few years. I highly recommend if you are looking for a rain suit at a reasonable price.