There are little quirks and oddities in LR (and LR 1.1) but my take on it is this.
LR is still in its infancy. Adobe is committed to the product and to digital photographers. Sharpening happens to be one area that they just don't really have together yet so I still sharpen in PS but that doesn't really bother me much.
I'm sure there are other programs that give LR a run for the money but I think as time passes more of those programs will fall by the wayside as LR continues to grow and develop.
If you're a long time PS user like me then you might remember very early versions, and it had its problems and features that needed to develop. It might take some time and many interim updates but I really believe that in the next full version upgrade we're going to see major changes and fixes that will speed up work flow and allow you to stay in LR without having to go to PS for much at all.
I can't see Adobe doing any less with LR than they've done with PS, Illustrator, GoLive (now Dreamweaver) and other key programs they produce.

