I've loved the show, hated the end.
What Bill did was suicide, no doubt about it. For an immortal (and only for an immortal being) that's acceptable. I get that at some point in forever you might decide you've had enough. Traumatizing the person you claim to love the most by making her pull the "trigger" is a major douche move, as well as doing it in a way that leaves her defenseless to the myriad threats that are still alive and well and aware of her existance despite her potential lack of powers.
It just seemed to undermine a lot of the underlying themes of the series, especially the vampire acceptance message that Hoyt and Jessica's awkwardly forced marriage was trying to send, and while I'm glad Sookie retained her power I felt the whole end was bruttaly anticlimatic. No drama, no discernable purpose, just a broken shovel and a splat. I feel like the writers were building up to another ending in which the Sookie strain of Hep V was turning Bill human, allowing her to read his thoughts, and her fairy bomb was going to be the tool to burn away the last of his vampirism and make him a real boy again. It probably wouldn't have sat well with most of us, but I think it still would have left a better taste in my mouth than Sookie Kevorkian.
Ah well, at least I finally got the World of Darkness series that I never got out of that horrible Kindred the Embraced series. True Blood you were funny, frightening, and pants on head insane. You will be missed.