I bought an SRP TI off the classifieds here, I have to say I enjoy using it. I found it a lot daintier than my old Kropp (which feels a bit numb to use).
TBH it's the only razor I use at the minute though saying that I have just honed up my old J.M.Smith from York razor and will be giving that a go next time. After that I'll be having a go with a George Butler Trinity Works (Keen) Sheffield jobbie so will post again later to see if my TI is still my favourite (odds on it will be)