I have been running the Alpinlite for a few years now. I really like the warmth and lack of weight.
The width is a bonus for me, as I am rather broad across the chest(44 coat size)and am a side sleeper.
I haven't had this bag much below 15*F, but in those cases it was still very warm-I have a hunch I could go into the high single digits with just a base layer and wool cap sleeping in the Alpinlite.
I will never part with this sleeping bag.

I purchased these shoes two months ago from Backcountry and have ~50 miles on them, including a climb of the OS route of the Grand Teton last weekend. During that climb, the shoelace guide on one shoe completely ripped out, making it difficult to properly tighten the shoes.
Also have holes wearing through the fabric below the laces.
Not pleased with these at all.
NOTE: big thanks to Backcountry for letting me return these shoes! BC is the best!!

I am very impressed with the warmth of this garment.
Incredibly light, packs down to almost nothing.
Got caught out on(got lost, mechanical problems!) mountain bike ride last night, and this jacket, was literally, a life saver.
Going to buy another one so I have a spare.

BTW: I am 5'9", 190 lbs, and wear a size 44 men's sportcoat and the large is perfect-not too baggy, but handles a base layer with ease.

My single most utilized piece of outdoor wear.I have this along on every mountain bike ride(fits in my Camelbak Blowfish with room to spare) I also bring it along on every hike, backpack trip, snowshoeing trip, or backpack hunting trip.The warmth for the amount of weight is nothing short of amazing. The thing even is pretty warm when wet!Sizing seems spot on, with room to layer a R1 or Capilene or Icebreaker underneath.Patagonia got it just right with this vest.

I have been running my MSR's for almost 3 years, and they have been great. Very good over technical snow and ice.I feel like I can climb walls with these shoes. :)
I really like the bindings, I can use them with a variety of winter boots. I should note that I never use the Televator feature, but I will try it one of these days.
Not much bad I can say about these shoes.

Been wearing mine a bunch since I purchased it in October, been in temps of 30*F with 20 mph winds and am quite warm, this with no base layer other than a cotton T-shirt. Also blocks the wind very well. Jury is still out on how breathable the Nano Storm is-HOWEVER, I sweat like crazy at anything other than a casual stroll, so I may not be the best judge on that score!
I plan on taking this jacket to the Alps in a couple of weeks as my only warm jacket-I have a hunch it is going to do very well.
As far as fit is concerned, I purchased a large. I am 5'9", 190 lbs and have wide shoulders-I have plenty of room for layers without the coat seeming 'baggy' around the waist area.

This is my first R1 garment and I have to say I am quite pleased. Used it on a long(6hr) mountain bike ride in rain and snow a few weeks ago and it was very warm, yet breathed well. That last is a big deal for me as I really sweat a lot!
The fit is superb, especially the long 'tails' as I have a long torso. The thumb loops are also appreciated.
I will be buying another one of these soon, methinks.
Nice job, Patagonia.

Very warm, especially considering the weight! Feels very soft, as well. The sleeves are a bit long for me, but that is fairly typical, I guess I don't have those Chimpanzee arms?!
:D
I am looking forward to using this jacket as a insulating layer under a shell this winter.