I often photograph in difficult lighting, I saw so many Rollei 3.5s but am afraid that it'll limit my photography. But yeah the 6x6 is looking like it may be the next phase in my photography journey.
The 3.5 still has really nice bokeh (see below with some Agfa Astia) and its worth remembering the DOF on MF is a little thinner than 35mm so the aperture limitation can often be more forgiving when focusing. But the big googly glass of a 2.8 TLR is definitely swoonworthy.