I train at Diesel gym - agree still 'rustic' as the showers etc just put in and its just a room to change in - nothing fancy - and to be fair never will compete with normal gyms Fitness First et al
I would say however that the ring, matted areas etc are very good and you paid the one off drop in fee which is expensive (and on purpose)
the monthly 80 quid or weekly 25 quid allows you to now
train MMA x2 a week with Tommy Gerald (had Ryan Robinson/Tory Groman/Mark Smith all help too when Tommy was away)
now also train BJJ x2 a week with heavyweight Blackbelt Thiago 'Monstro' Borges
Muay Thai evernight mon-fri and sunday too
for a location that close to Canary Wharf its not bad value for 10 lessons a week if you did each one (none of them clash)
if I lived where Malcontent does (west london) then - totally unbiased - would go to London Shoot for MMA - a no brainer - or down to Carlsons - as on his doorstep.