I was excited when I receive this in the mail (took two long weeks to play with this bad boy). The PQI air pen was smaller than I had expected-- which is a good thing, can you imagine walking around with a big stick (no pun intended)? It's very compact and easy to use.Before reading the manual, I had accidentally purchase a 64gb microSDHC instead of a 32gb so I did what any curious george would've done... I tested it. To my surprise it worked. However, the SD slot scares me since I don't see an eject button anywhere (which lost one star for me, what if I want to change out the SD card?)Also, I find it easily to access the wifi port on the PQI air pen-- no password or anything! However, the app states that you can change the access wifi password... WRONG... there's no way of doing that because when you go into the setting page, there's only an option for those that already have a login account. You can't edit or manage it (another 1 star deduction there).Other than the SD slot & wifi password, everything works perfectly. I had to convert a lot of my videos to the correct format but it was well worth it :)