All in all its been a good experience, but not without some issues. I haven't noticed any slowdown over the 6 months or so that I've had it, but have experienced overheating when using GPS for navigation. However, I've done a factory reset and restored using the LG backup service (I couldn't bear to start from scratch again) and touch wood it doesn't seem quite as bad now in terms of overheating.
The LG v10 is a truly awesome phone and I can't think of anything that would tempt me away from it at the moment. Maybe the Note7 in August but we'll see....