The web-based builder, while not being an unalloyed good, was generally an enjoyable experience to try out. I especially liked the new layout of the character sheets, as well as the fact that Essentials is kept in its own little cubbyhole. I subscribe to their Insider program by the year, so it's around $6 a month for me, which includes access to the digital versions of the magazines Dungeon and Dragon. Do I wish they still had the paper versions of the magazines? You bet. I always subscribed to them and loved reading them every month. Of all the decisions they've made in the years of tweaking the game, ceasing publication of the paper magazines was quite possibly the worst. Still, for such a small monthly fee, I feel like I get my money's worth.
I did have some issues with lag today, which I'm (at present) willing to chalk up to it being new and being under a lot more strain than it will be day to day on average. It did crash on me a few times, though with a web-based application it was just a matter of reloading the window, and it saved most of the work I had done. I wish I could say software that crashes was some sort of intolerable aberration, but I have AAA PC -and- console titles that do that to me, some way more frequently than they should, so the fact that such a niche product has issues doesn't floor me.
I understand folks who want a non-web based version, and I hope that they see the light and enable it to run offline, at least in some functionality. A mobile version or mobile features would be cool, but I really prefer my pencil and paper gaming to be just that, pencil and paper. If all the players have their phones and laptops out (I make a special dispensation for the DM), it starts to make me wonder why I'm bothering to play tabletop.
As for the endless holy war that wages between editions, this is nothing new. Saw it when we went from 1e to 2e, then from 2e to 3e, and then it got really dicey (ha) with 3e and 3.5e, and now on to 4e and what I'd call the Essentials Heresy. Fortunately for hard core 3.5ers, there's always Pathfinder for you, which is a first in this long and bloody march, a supported haven for a previous edition of the game.