I like (/don't care) about the new UI look in Yosemite but I have not been very impressed with it as a whole. The install took over 3 hours (I use homebrew and minor research I did pointed at that being the cause, well the cause being lots of data in /usr/local which is where HB puts it's stuff) and this [0] issue was causing me to pull my hair out until I just disabled per-display spaces to "fix" it. That menu bar issue would cause a 1-3 second delay between clicking on a monitor different from the one with the active window which was infuriating.

I was unaffected by the big issues (wifi) plaguing iOS 8 and didn't get burned by the 8.0.1 issue. I have the 6+ and I do have some weird issues still like BT Audio sometimes skipping a second or two when the screen rotates (I know... odd) or just screen rotation issues as a whole (I shouldn't have to shake my phone or switch orientations multiple times before it works!!). Also the healthkit stuff not working at release (because of a security bug) was annoying, where is the homekit integration?, handoff is gimmicky and I have found little/no use for it so far (I have a MBPr + iPhone + iPad, I expect better), keyboards where glitchy as fuck on release, Apple Pay didn't support either of my CC's and the process to setup a card was far from what I would expect from Apple.

All in all: Yes, both releases were shit if you ask me and that's coming from someone who loves Apple products and owns quite a few of them.

[0] http://apple.stackexchange.com/questions/152038/prevent-redr...