Hi there. I cant say I have heard either the receiver or the speakers but in the past Yamaha kit always seemed to get decent reviews and A quick google tells me this amp was around £399 new so should be decent enough id say. The Bose speakers were expensive kit new at around £900 - £1000 it seems.
If you are on a budget and after a complete starter movies and games system it would be worth considering imo. Have a listen to the system and if you like the sound and it has enough connections for your sources id say go for it and offer the seller £250 maybe.
If you post some more details of what your needs are you should get a few more replys.