Got mine an hour and a half ago with Zelda LE.
Console is charging but I went through a few things to check them out.
The Good
+Switch unit feels fantastic in hand. The first time I held the Wii U pad it just didnt feel as good as the new glossy finish would suggest, it felt light but also cheap. Switch feels like a decent tablet, just thicker.
+Joy con controllers are really nice to hold, they use a really good soft touch plastic which is kind of what I expected of them but it was still nice to know they felt as good as I expected to them too.
+UI is fast. Like really fast. Finding my WiFi connection, downloading the update, accessing eshop, navigating menus, its nothing like the Wii U which was ok but ponderous, this is snappy like you expect on a brand new tablet or phone. Whether updates remain as fast as more units go out is another story.
+Excellent quality screen. Not as sharp as newer phones or tablets but given this is a games machine, it is nice and bright, clear and has good punch.
+Positive lock on joycons when sliding them on and off. Havent Giantbombed them, they do click into place nicely.
+Joycon holder actually does feel rather nice as a controller.
The So So;
/ Joycon analogue sticks / gimbals. I expected better. Maybe its something I'll not notice in game, but first impressions when moving them about was that I was a bit surprised they didnt feel as smooth as I would have liked and the tension on them is definitely a lot lighter than I would have liked. Havent played enough of any games to really comment how noticable it is, but it was definitely the first thing I noticed.
/ Joycon buttons. A bit like the analogue sticks. The buttons felt a little bit....plasticky than I would have expected. Its hard to describe, they just dont feel as tactile as I would have expected.
The bad;
-Dock, pretty much everything about it. Its light, its just kind of a big piece of plastic. Which to be fair it is and all it does is act as a passthrough, but definitely feels on the cheap side, which puts the price of spare or extra docks in the 'Nintendo must be out of their mind' category.
-when docking console it isnt as reassuring as clicking the joycons etc in, it can move back and forth a bit and finding the placement is a bit cumbersome. Would have prefered some more soft mounting on the front side of the dock insert so the screen had something soft to slide down across, you can dock the Switch without the screen touching the front, you just have to be aware of it.
Non-Switch
- personal hygiene of those at the launch event reminded me of being around when WoW launched. Seriously people, I dont like to be rude but honestly some of you need to shower more of something.....