Have I done OK..

Long time lurker.. just need a bit of reassurance. Committed to buy this Dolan Tuono SL for £350. It felt like a good deal, but I'm no bike expert… welcome your views please

Anything on these bikes / groupers I need to watch out for?

Shimano 105 Rim Brake Carbon Bike
Full 105 Mechanical Groupset
Mavic Cosmic Elite Wheelset