This feet are great, they can be used in almost all angles and the golfus texture gives you something to toe in on steeper walls. They could also get used as handholds for some interesting knobs.
They would be a good buy for homewalls and for gyms
Comfortableness/Ergonomics of the holds: 4/5
Balance of Lefts, Rights, and Ambidextrous holds: N/A