crazy day at work... first the printer doesnt work... then the internet goes down for awhile... then the best part... some guy puts a bid on every auction we have up.... 30+ auctions... at around $100,000... so now we have to take all of them down and relist them... good thing its on the other ebay id and not the one i put stuff up on.... 
these bikes are basically the same thing. these are Chinese; there is about half a dozen Chinese scooter parts manufacturers supplying parts to about 20 scooter manufacturers who build about 100 different styles of the same bike. this guy on ebay, sells these bikes still in the original crate from china. he does not even look at them, he is simply a distributer. the thing is, i have worked on MANY bikes like this. they are poorly built from cheap plastic. also, you will have many bullshit problems with these bikes. where are you going to get the parts? who is gonna fix it? the thing most important of all is: t'n'g scooter company (which is a Chinese scooter company) to my knowledge is the ONLY Chinese scooter company which makes there scooters California DOT approved. if you buy that bike on ebay, you will have to take it to the dmv, then to the chp, then back to the dmv, and chances are that they will deny your petition for registration.
hope this helps holmes!