Two weeks ago my starter broke.  The Bendix gear remained engaged and I noticed that a tooth from the gear itself was cracked off. 

It is a Lamar starter and has given me lots of problems since it was installed about 60 hours ago.  It was replaced with a new unit under warranty, but just today, with less than 0.6 hours on the new starter, the Bendix spins but won't engage the ring gear. I took a screw driver and managed to manually rotate the Bendix forward a little bit and then was able to fire up the engine.

Maybe it just needs to be lubed, but with my luck, it's probably defective. I can maybe get another Lamar unit on warranty (my third one), but I seriously cannot afford any more problems and the downtime.

If I have to replace it, what starter do you'all recommend I consider for my C-172M with its Lycoming O-320 E2D engine? 

Price isn't an object, I just want superior life and reliability.