True bypass and buffered both have their advantages and disadvantages.
Choose what suits you best, and remember that not all pedals marked true bypass are true bypass either (mostly bypassed may be a better phrase), but look at the wiring (and circuit) diagrams yourself.
BTW I have to say that personally I would not judge the looper as a work of genius, it's a the competent use of a switch, the same as dozens of other fx builders have produced for so many years.
The Pete Cornish tube buffer is much closer to a work of genius, but how may of us have such requirements.
Rob...