1. I really don't notice the fan noise, but then again, I'm not in the most quiet place right now (in the hospital). 2. Typing is definitely going to take some getting used to. I've been typing on it for less than a week and I'm still making quite a few mistakes, but I'm getting much faster. The keys are more on the smushy side, but there's good tactile feel and plenty of travel, in my opinion. 3. I've never used the nipple until this machine but I'm actually getting used to it and like it. 4. Build quality is fantastic. It is a really sleek machine. There are some build issues for some, from reading the Indiegogo page, but I got a good unit. 5. I can't give you an exact measurement but it's about 160deg if I had to guess. Just about flat with the display. It has a fan.