neobolts
Explorer
So like many I treated my self recently and bought Xanathar's Guide, but I have to say I was some what disappointed. To go into more detail, I just felt like they handed us a bunch of UA material and a couple of other small interesting things and sold it off as a finished product.
While I can empathize with the letdown of seeing a lot of material that already felt familiar, I'm surprised you didn't see it coming. The whole point of the UA playtest material is to 1) playtest it, 2) identify what works and refine it, 3) and then publish it in a book. I would've honestly been surprised if they didn't fill the book with UA material after years of playtesting and surveys about it, all with the expressed intent to polish and print it.
Liked: I was thrilled with the archetype expansions, and I really like the expanded tool usage rules and downtime rules (particularly the magic item crafting/buying rules).
Disliked: I did not need a 17 page appendix of randomly generated names, although I have encountered a DM since that struggled to name an NPC, and was happy when I pointed out Xanathar's Appendix B to her.
Vote: Happy with it.