Who else uses w10 across multiple devices?

I use w10 on 3 devices, a mid range gaming PC, linx7 tablet, and lumia640. On the whole the experience is pretty good, syncing works well, reminders, alarms, contacts etc. This was one of the reasons I opted for android early, using chrome on a PC gave a similar, yet skimmed down, one OS feel.
I've not had one BSOD since updating the 'rig', my mobile works great, and the tablet is amazing for £49! I was talking to my father in law who uses all 3 main OSs every day, and we both agree that windows just feels more 'grown up' than iOS or android. He wants a win10 phone next to replace his android (he'll have to keep the company iPhone4).
So like I said, does anyone else have a similar experience?

yeah i have no probs with my Lumia 920, HP work laptop and 2 of table computers at home.

just pisses me off to have the same background on each computer and i seem not to be able to find a setting to keep that sync out

Is it theme?