Anybody using it yet? Have you got a reason for holding off?

I am holding off because it is Microsoft and it generally takes them a while before it is ready.

The only reason to make the jump appears to be DirectX 12.

http://www.maximumpc.com/top-reasons-to-upgrade-to-windows-10/

I'm using it on my tablet and like it.

Went from XP to 8.1 then 10.
I had no issue with 8.1 but was just learning it.I found the transition painless.

I used Windows 10 on my desktop for one day before I switched back to 7. It had some major issues with my video card drivers and getting my third monitor working, and I decided it was too much work to be worth it. I do have Windows 10 running on my laptop, and it seems to be doing great in a one-screen, single video card environment. I had to turn off Cortana though... I was excited to be able to use the feature, but its recognition was shoddy at best, and it would randomly pop up while I was playing a game, causing issues.

Who is this Phoenix-married-guy??

Phoenix, I had the same issue when I installed Windows 10 on my desktop. My second monitor would not work and my main ones resolution would not change. I forced a windows update and this solved both problems.

Apart for that I have 10 on both my laptop and desktop and I really like it; it looks nice runs smoothly and I have not had any issues apart from having to verify the cache of a couple of steam games.

Well I'm getting married on the 28th of May. I've been busy lately, my fiance is on traveling exhibit in Virginia and I've been going down to visit her fairly often. In the meantime, I've been working more, and playing Eve Online as opposed to my usual shooter games with the clan. I have been playing some CS:GO, but I've just been casually doing missions. I'm hoping that once I change jobs (hopefully in the next couple months) I'll be able to get on for longer periods of time and get back into the swing of things with the rest of you Spartans. I do miss you guys. Be safe, and I'll see you on the battlefield.