First time macbook air owner, many time macbook & macbook pro owner. These are really a few annoyances but I will not keep the macbook air if they persist. First, while the fan is at 2500rpm (which I've read is normal at idle) I can hear the fan. The noise is NOT from the speed, it the kind of noise that comes from a very cheap PC fan. To add to the concern, the noise has been coming and going. While I began typing this thread I could hear the noise, at this moment I can't. Because of that fact I will probably go to the genius bar if the noise continues (because I hate fan noise, sorry i'm annal about it). Second problem is that the battery is claiming to take forever to charge. I drained it to nothing, then charged it over night. 10 hours later, in the morning, the light was still amber (not green). I powered on the machine and it was at 99%. Then 5min later it was stating 100%. Misc Observations: I also wish build quality was better. There are edges from the bottom plate where it isn't aligned properly or something, cause edges. There are also sharp edges on the drop-down drawer (what is the name for this?) which doesn't close by a few hairs less on one side than the other. Also a few chips marks can be seen along the outside sides where I would guess the laser cut it? I currently own a new Macbook and comparing the keyboard to the gen. 1 Air its obvious that the keyboard has been upgraded. The improvement...there is a lot less "play" (movement) of the new keyboard. It took me a little while to determine what felt different. But if I put my fingers on the keys and wiggle there is a lot of noise from the keys moving; not so on the new Macbook. I'm not seeing the "instant on" feature of the LED backlight. My backlight slowly fades in from a dark state. Maybe someone will share some insights? THANK YOU!