Well for my relatively simple demands everything in my houseconnects to the 2.4GHz band. Mind you I have nothing approaching all the equipment you have, asking for high demands of your system. I'm still on ADSL!!
Still, we are all different with different expectations. I just would not be prepared to pay that monthly price for 900Mbps.
The main issue will be the SH2. Its junk and not really built for stable FTTP services. It suffers from poor software and performance, with a pre-programmed reboot every 2 weeks to mask the software and memory leaks.
Do yourself a favour and get a decent router, and send the SH2 back to BT so they can "recycle it" to another poor unsuspecting customer
@stevie_b1 thanks for that. The 2 week reboot ive not picked up on tbh. The wireless range seems ok for me tbh
the 14 day restart only happens with a few customers and only those on adsl/vdsl and does not affect those on FTTP