3-point seat belts for bench seat

Looked back a ways and did not see my answer. In Classic Industries and Year One's catalogs there is an aftermarket 3-point retractable car specific front seatbelt harness available. Classics for $251.99 on page 70 current catolog and Year One's for $313. I think that they are the same mfr. My question is, if you think that you have installed this seatbelt harness, do you like it? Did you have to relocate the anchor area? Any difficulty getting into the back seat? Making the decision to go totally original or this aftermarket belt.