Not to hijack this thread... but why would I want to upgrade to 6.5??

I was using my co workers Imagio, tweaking it for him as he kept running out of memory and his battery life sucked... and well... I hated the menus on windows side. Also, it felt very slow, and even after the memory tweaks, his memory filled up quickly.

Though, I like the look of HTC's interface on 6.5... I didn't see any reason to do it.

So, I ask... why would I want to upgrade to 6.5? For me, I use my phone for everything. It is basically an extension of my lap top. So if 6.5 helps in any way, I'll go for it.

Just really looking for reviews and recommendations.