Motorola Droid :: Contemplating Eris To Droid Switch

First, I've read all the "I switched from Eris to Droid" posts. Found them to be informative, most a bit dated.

Second, I've had my Eris since the first day it came out. I went to the store expecting to buy a Droid on the first day it came out. It happened to be right when I needed a new phone, I didn't have an existing phone or plan, so I was free do to what I wanted. Didn't know anything about an Eris. Went to the store and was unimpressed by the Droid's keyboard. Plus it felt blocky and I didn't like that the sliding keyboard felt like it was going to slide out all the time. Picked up the Eris and between the size, the form factor, and Sense UI's 7 screens and widgets I decided that the $100 savings was money well pocketed. It didn't take me long to start getting annoyed with it though. The battery life, the lag and other issues mounted. Then Sense kept re-booting, as did the phone. So I went back to the store inside my 30 days. I got a new one and an "extension" on my return ability.

The second phone was great...for a while. Lag returned, in a big way. In the meantime, the Droid got 2.0.1 and is getting 2.1 soon. The Eris should have 2.1 by the end of the month, but I'm not convinced it will solve my issues. I was in the mall again today and spent another 15 minutes or so with the Droid. The screen has always impressed me, but the speed just blows me away. I hate the fact that it takes Handcent 10 seconds to load, the fact that the landscape keyboard is slow in loading, then laggy. That the menus, etc. are just slow. Slow, slow, slow, and did I mention, slow? I've tweaked this phone 9 ways from Sunday, have tried all manner of task killers, task panel, startup manager, etc. I've cleared cache, re-booted, etc. This phone, in current form, lags. Now 2.1 is coming with Sense, and that may help. But the Droid's screen....oh, that screen.So here are my questions:

1) I hated the keyboard, and after using the phone for about an hour and a half in total, still don't like it. I know you don't have to use it, are there those that liked it better with time?
2) Does the sliding keyboard "loosen up" with time ? It didn't feel impressively locked closed to begin with, I don't want to feel like it's going to fall open in my hand.
3) How's the battery life? With my Eris, I can get a full day of GOOD usage without having to re-charge. The Droid?
4) I've heard issues with phone sound quality. Are those common, or isolated?
5) How's the screen in sunlight?