I had a Tetrapad during one of its early firmware iterations. I wasn’t crazy about, probably because although more functionally consistent, I didn’t feel it was as intuitive as Pressure Points and I started patching around it.
Two years later, I’ve started to look at sequencers that can also function as macro-controllers, accepting physical action as step advancing, and have also really gotten into using Pressure Points as stored voltages in parallel with its gate output triggering other sequences forward (Tirana II and Usta) which has now brought the Tetrapad/Tete combo into consideration.
As that combo becomes more popular, I see more affordable Pressure Points/Brains combos becoming available, and wonder if the less immediate/tiny screened nature of Tete will define its usefulness again, although it is the near perfect marriage of touch interface and sequencing.