Yes, very happy, though you're only seeing part of the picture. The RM 800 I bought here last year is my back-up amp, I also have an RM800 evo. I use the evo primarily, through either a BF Super Compact (1 x 12, 8 ohms) or for larger venues, a BF Super Twin (2 x 12, 4 ohms). Whichever I am using, I use a Sansamp Bass DI and go straight into the power amp section of the RM800, bypassing the entire pre-amp. I just find it simpler, and easier to get consistent results, especially if I am also DI'ing not the house PA.
Whereabouts in Cheshire are you? I spent quite a few of my younger years living in Bramhall, that's where I first started this game, in fact!