I have had no issue so far. It's been very responsive, Zelda pages perfectly, functions... functioned. I did turn off rumble but I always do that. I'll give HD rumble a chance with a better game fit that later.

Li-ion doesn't have battery memory, there is no benefit to this.

I picked one up this morning after waiting in line for 15 minutes. I got one at a Fred Meyer, they had 36 of them this morning in the city I live in. After I got done checking out they still had 2 tickets left. I'll come back and post if I run into any problems. Unfortunately I'll have to wait to play it until after I get off work. The one downside to having  job/career.

Not an issue, really happy with the system. Not desync, which worried me, after 5 hours of BOTW playthrough. The OS is really fast. UI is simple, which I love. I think it's a pretty neat system.

I've personally, and read many others accounts of it (neogaf, etc) had an issue where once the joycons are locked on to the switch console, they still have a small amount of movement up and down, as a result can creak and wobble a little during play, it's anouying.

Play in that context basically means "moves about when it shouldn't", for example, if you had "play" in a car steering wheel, it would mean you can turn it left or right a little before it turns the cars wheels.

No joycon issues here yet in my prolonged Zelda sessions. Though I've been playing pretty close

Price

Is the reason why I'm not getting one yet D:

My laptop's battery is also Li-ion, your point being?

I havent noticed any joy con issues. The joy con though feels a little odd at first, and the CO sole is amazingly small it's like wtf, how is this producing these kinda graphics.

Charging to 100% and switching to AC-only is perfectly possible, there is no reason, what so ever, to allow the battery to discharge to 86 or so % and then hold it there, it does not do anything of benefit for the battery, nor does it have anything to do with prolonging it's lifespan.