Please post impressions. I've read mixed reviews in this thread.
EDIT: That knockoff looks decent enough for $50. Especially since I have no GBA at all right now - even a vanilla one would cost $20-$30. Please post more detailed impressions after a while.
Well...based on the time I use the system, here is few things I can say about it.
Plastic Case: The quality of the plastic is decent and doesn't feel too cheap on the hand.
Button: The A and B button feel find and work quite well when playing games on it. Same as the Left and Right control. The only minor issue I might have is maybe the Dpad. Can't say I hate it but they is something odd about it when I am playing some GBA games. I have a feeling is maybe I love the Dpad on the SP and micro as I play my GBA collection on them quite a bit. Don't think they is issue with most GBA games but if you're playing certain type like fighting game for example, might consider to play it on the SP.
Screen: Yup, it's the 101 screen and bright enough to play any GBA games. Work well, and don't have any complain about it....for now.
Battery life: because this GBA have a back light screen, the battery life for this feel shorter (using standard eneloop). Feel like I can use it for around 10-12 hours before I need to change the battery.
That's all I can say for now. If you have questions, do post here and I will try to respond those as much as I can.