The Salmosa is pretty terrible tbh. I've had it about 18 months and the skid feet are totally worn through. Wouldn't be that bad but they charge 1/3 what I paid for it to replace them. It squeaks SUPER loudly and looks in worse shape than a HP USB mouse I have had since 2000.
I was pretty skeptical about going with Razer again after that but £35 for a brand new Boomslang with a Tshirt is dirt cheap and it is their flagship product. The Salmosa was always going to be a bargain bin special so I hope with price the quality picks up (it had a RRP of £99).
Plus I used to sit and dream over the original Boomslang. At the time I was absolutely broke (green card battle for 5 years) and always wanted one.