Since jumping to the Droid from my iPhone 3GS meant paying an ETF, you better believe I played hawk-eye with the Droid. But my pre-purchase homework involved hanging out at this and other Droid-focused forums, so I'd be prepared to remedy predictable problems.
I was concerned that I might possibly lose my google-based contacts during the initial sync. Ditto gCalendar. So I exported everything first so I'd have a backup. Turns out, I didn't need them as the maiden sync was flawless, as is true of subsequent seamless syncs.
Frankly, I'm nuts when it comes to an app store. To protect me, my first purchase was My Backup Pro. Haven't "had" to do a restore yet.
I'm not wild about Droid's version of copy n paste. But that's pretty much my only complaint.
Any weirdness encountered has invariably been attributable to a just-installed app, and was always remedied upon the offending app's removal.
I hasten to add-- I allow for the possibility that a show-stopping glitch could appear. It's a computer as well as a phone, so I understand the implications. Nonetheless, having spent some serious time (years) with other smartphones-- 2 Treos, 2 Blackberrys (<< model upgrades), Nokia 3650, the original Sidekick, and the original and 3GS iPhones, as well as each network, there is NO doubt in my mind: Verizon + Droid = the best bang for this lady's buck, bar none. It operates beautifully AS A PHONE, and has equal prowess when it comes to web browsing (freebie Dolphin browser adds pinch-zoom), email pushes, Google Voice, and the overall notification system is intelligent as well as consistently RELIABLE. Among the many unsung bonuses: gentle task reminders when you enter the corresponding geographical area (free Astrid or ActionComplete).
You've got 30 days to play your heart out. Only YOU will know your final verdict after hands-on testing/familiarity. Whatever, enjoy your smartphone travels.