I guess over the years iv had bad experience with sram brakes ( Nearly going off a mountain edge in the Alpes a few years back) and not heard good feedback generally, but it`s all personal I guess.
I had two mates buy both... 1 Bought the lower spec ( At £3600 deal)and upgraded, dropped, forks, bars and brakes. Other bought the 5k for deal at £4500. I think the 3600 mate spent 1k on the upgrades, not sure if he`s sold the old parts yet.. As above, people have upgraded and that`s the best...