I signed up for DDi around the time it came out in 2008, and watched it decline throughout 2010, letting my subscription expire at the end of that year. It took a bit of adapting to return to a game without the convenience of DDi, but I enjoy gaming far more without it.
I just don't like the subscription model for software. Things like the character builder and monster "builder" should be released like HeroLab, downloaded onto your hard drive, with free updates (or perhaps annual updates for special rules).
An online magazine should be organized by issue or else have a solid searchable database. Why the stopped releasing PDFs of Dragon and Dungeon is beyond me.
The software automatically incorporates errata that you might not be aware of yet and, in rare cases, alters a PC's power significantly so that it is noticed during play. There is no going back with errata or picking and choosing - once it updates that's the way it is until next update.
Also, I notices when my players use the character builder they seem to lose their creativity and don't have as solid a grasp of their character's abilities than they did when making characters by hand. But maybe that's just my group.
There is no campaign management tool, which is what I would be tempted to actually use at the table. As it is, I can't justify using a laptop with for the compendium because (a) space at our gaming table is at a premium, (b) it's distracting from what's important - each other, and (c) there are times when I just don't have my laptop with me or otherwise would lack DDi access.
Finally, when I unsubscribed the Dragon an Dungeon contact sucked Catobelpas balls. Apparently it's improving, though that may not be saying much.
DDi feels like an unpolished beta version, which I'd be happy to playtest but not to pay for. I'll give it a second chance maybe around December, but I'm not holding my breath. Our game is going just swimmingly without it
