I don't think it is sensible to comment on any item bought through TB without specifying the particular TB shop and/or item.
You see there are dozens if not hundreds of TB shops selling some items with many models to choose from.
I myself have bought several RC car shells thru' TB: fragile and don't look good (shell for X18), good looking and durable (shell for HQ 727).
BTW, you may look for similar item in Yahoo auction first. Sometimes you may find better deals after considering the courier costs, RMB exchange rate, shipping time and hassles if the delivered item don't meet your expectations etc.