These things really are garbage, especially compared to the handhelds and plug&plays that you can import from china.
For the same price, you can get something that plays ROMs from a dozen different systems as well as movies and music.
I am curious about the SMS/GG plug&play that looks like a deformed Sonic head, though.
From my experience with the Coleco PlayPal, Sega 8bit clones seem a lot less dodgy than their 16bit counterparts.