Update: I experienced the chain throwing problem several reviews mentioned. This was after about the first 10 cuts. The chain would get thrown off every 3 cuts after this point. I looked at the tensioner, and it appears that when oil seeps around the bolt it lubricates it enough to start loosening itself under vibration. To fix this, I took off chain cover, wiped the bolt thread of oil, and put semi permanent thread locker on it and re-tensioned the chain. It hasn't come off since then. I'd suggest doing this before use.
This was bought directly from Greenworks.com. They have 20% off coupons regularly and didn't charge sales tax in my state so this is the lowest price I could find.
