anyone have XLR Viper 31 FQV10?

New guy here. Looking for first TH.

I found a freshly traded 2013 XLR Viper 31 FQV10. Seems to be 'like new'. I don't think a generator was ever installed. No holes or cables in gen compartment.

These don't seem to be very popular trailers and even discontinued??

Can anyone please tell me about these trailers? Book value/negotiated price? Any pitfalls or weak points I should be weary of?

Thanks!