They look like Snap On quality. Plating looks decent, almost surgical.Sliding T-handles are actually fairly expensive, and this is a moderately-priced set. The tools they are patterned off of, from Beta, are significantly more expensive for the same number of wrenches.
Tool use/form factors are a personal thing. I've been through 3-4 different styles of T-handle, P-handle, wing-type, etc.