I had a Rolleiflex T (with 75/3.5 Tessat lens) and now have Minotla Autocord. While both are great cameras, I somehow preferred handling of the Rolleiflex (but this could just be that the Rolleiflex was my first TLR and first 6x6 camera). Both have great lenses which produce very nice portraits (nothing wrong though with Planar or Xenotar lenses in the more expensive Rolleiflex models, of course) and stopping down a bit are really sharp across the field.
TLR is a great experience if you give it time to learn and do not plan to hurry too much while shooting. It is definitely worth a try