I've had one for a couple of months now and I thought I'd give my "initial impression" here.
Waterproof: It has a fantastic DWR treatment on the outer shell. The zippers are completely waterproof.
Fit: The XL fits me as an XL should. The tail covers mine (19.5" torso) and the shoulders are broad enough so the sleeves don't pinch when I reach up.
Features: The hood - large volume - can fit over a climbing helmet (I haven't tried it - I don't climb). When cinched down it tends to push the visor over my eyes (the only thing that stops it are my glasses). Imo it could use improvement. The sleeves are long enough to cover the back of my hands and the top of the sleeve is cleverly cut longer than the bottom for water runoff. The cuffs are velcro adjustable and open wide enough to go over my bulky gloves.
Quality of workmanship/materials: Both are excellent. I have a friend who said that the jacket is a little heavy for his liking (but I bought it for winter mountaineering and might be sliding on ice or even rock from time to time). It should hold up very well.
Breathability: Here's the disappointment. I'd heard that eVent was much more breathable than any Gore-tex product - and it probably is, BUT it was overwhelmed by my sweat when I was shovelling snow yesterday. I had a Golite Coal (Polarguard insulated) under it in 23 degree weather. I admit I was a little warm, and if I were hiking I would've layered better, but the nylon outer fabric on the Coal jacket was obviously wet (not just damp) from condensed sweat, and the insulation in the jacket was heavy with perspiration.
If I had dressed more lightly I wouldn't have worked up such a sweat, BUT I would have been more impressed if the jacket actually breathed a little better than it did. It needs pit zips (for me, at least), I don't care what anyone else says.
In short, an excellent (but pricey) garment which should last a long time and is at least as breathable as the best of the Gore-tex incarnations which are truly completely waterproof.
"SIGH", no holy grail yet.