I've currently got an original Yashica Mat, and a Rolleicord Vb.
What I dislike on the Mat is the lack of parallax correction (the Vb fixes that), the hood is incredibly flimsy (partly because one of the springs has gone). The Vb is built far better, but changing aperture and speeds are far harder than the Yashica's wheels, which makes me slower.
Both of them don't have meters, and I'm finding having to use an external meter and transferring the settings slow to the point where I feel like I'm missing the shot.
So I'm basically looking for a well built, metered TLR, which leaves me with the higher end Rolleiflex models (very very expensive, meters have reliability issues) or a 124G (the meter again doesn't have a very good reputation), but I'm wondering if a good 124G with a good functional meter might solve my problems?