I like my newer Sony a lot compared to the book it replaced, but your concerns suggest it might not be the best fit for you. I mean, once I had one I knew I would use it forever, it was just a question of working the kinks out.

If you have the money to spare, I'd say go for it and see how you feel, but if a new one would be a significant expense, you might want to hold off. (I'll also ask if you've looked at colored screen options - my gf liked my Sony well enough, but since she got an iPad, that thing practically lives in her hands.)