I recently wiped my Nexus 6 because the battery was draining (would die at 2 PM) faster than normal and I had some pretty bad issues with the camera. When I reloaded it I resolved to use the website version of apps as much as possible and not to download native apps.
My battery life now is superior to before. I suspect that a lot of the apps I had were phoning home or disrupting WakeLocks like Facebook does.
I am officially appskeptic. A lot of the old apps I used to use I can do most things through their mobile sites. For the ones I can't that I have to use I go through the website.
I remember the days of the first iPod touch and early iPhone where Apple championed web apps vs dedicated. I wish the trend would have continued that way (even Windows Phone would be viable if so).