I have a Nexus 5 phone and a Nexus 7 (2013) tablet. They are both currently running Android 4.4.4 and I didn't get the Android 5.0 update yet, but most of the Google apps have already updated (Gmail, Calendar, Maps, Keep, etc.).
Apparently Google started rolling out the Android 5.0 update here in the Netherlands and then found that some people cannot send SMS messages anymore after updating. So they stopped the updates and are fixing bugs now.
Did you upgrade your devices manually or did you get them via the automatic update mechanism? Maybe it's good to wait a while until Google fixes the bugs.
The only complaint I have until now is the Calendar app, especially on my phone the UI is a lot worse than the old version. The week view only shows 5 days instead of 7 days and you can't zoom in/out vertically anymore. The day numbers and time labels take up much more screen space than in the old version. The month overview is also gone. This is only on my phone - on my tablet there are still 7 days and a month view. Apparently the app decides that on a phone the screen is too small and displays differently. I hope Google will improve the Calendar app.
I updated my Nexus 7 (2012 model) and Nexus 5 over the air when the devices prompted me to do so yesterday. Doh!
The phone is still reasonably OK so far, although it seems a little more sluggish. But the tablet is really slow and unresponsive e.g. it takes ages to load an app, the apps themselves are sluggish, and the screen rotation is incredibly slow. It also crashes intermittently, which has never happened before. The new look-and-feel is OK, but I was happy with the old one and I'd much rather have a working tablet than a new interface. Unfortunately, you can't easily downgrade back to 4.4, so I'm stuck with 5.0
If I were you, I'd wait as long as possible before upgrading your devices. There seem to be a lot of people reporting problems with Android 5.0, especially on the Nexus 7, so maybe Google will issue some fixes soon. I hope so!
I've given up on Android 5.0 on my old Nexus 7, and just spent an hour or so downgrading to 4.4. Not too painful, considering I've never done this before. And now my tablet works properly again. Mmm...lovely KitKat...
I'll leave Android 5.0 on the Nexus 5 phone as it's not so bad and I'm hoping Google will be more inclined to fix the problems for a more recent device.
It's been interesting how Google has responded - or rather failed to respond - to this screw-up. They seem to have a tendency to go to ground and sit with their fingers in their ears going "Lalalala we can't hear you!" when stuff like this happens. I suspect Apple might have been quicker to respond, and Microsoft would simply have insisted the totally borked new OS was what we wanted all along...
My Nexus 5 phone already got the update last week, but for my Nexus 7 (2013) there is still no update available (and I don't want to update it manually, I'm going to wait until it the update notification appears). I wonder why it's taking so long before it's available for the Nexus 7.
Android 5.0 works fine on my phone, it's not slow at all and there are some new features such as a flashlight function and battery saving function that I didn't have before. And ofcourse notifications on the lock screen, which is a nice feature. The graphical design is quite different from older Android versions.
A short piece on the Register.com podcast talks about a) the removal of the generic email client (which can be addressed by installing a 3rd party client of you don't want to use the Gmail app), and b) that notifications are either buggy or very hard to configure correctly (it wasn't clear to me which) as the major problems with Lollipop.
On 2nd july my moto x 1st gen received 5.1(finally)
note:it never got 5.0/5.0.1 as the moto devs had a hard time to make the chipset and OS talk to each other. So it directly upgraded to 5.1 from 4.4.4
After 2 days of use I can say that there are new features...thats good.
Look n feel is refreshing.
I can not see any performance improvement.
And I hope they have fixed all the bugs found in 5.0/5.0.1(never used 5.0/5.0.1)