For some reason I nearly always feel very comfortable using a TLR and the Rollei T in particular. The camera I used through my Art school years was a Minolta Autocord II that focused with a leaver beneath the taking lens which was almost as good as the Rollei left hand focus wheel (knob) The disadvantage was that in cold weather (for me) it was too easy to catch the shutter if the leaver happened to be on the RHS at the start of focusing. Other than that the lenses and the film advance is much the same. Like really the linking of the aperture and shutter speed on the T and peculiarly I think the Rollei T is the only TLR that has that feature. Several TLR’s have 645 adaptor mask and counter wheels but as far as I know only the T in the house of Rollei. I’m going to put some fast 800 colour film in it next something that I have never used in medium before !