I'm finding the controller fine, surprisingly good for a first effort. It does clack, though
I'd prefer the xbox stick layout rather than the PS one that it has, but glad they went for the exact same button placement and labels as on the xbox. It's probably it's what you're used to, but I'm still always furious when the 'go forward' button turns out to be the 'go backwards' button.
Have also been playing a few more games and have been surprised how I can dart about between them without loading etc.
I do admit that at the moment Pro isn't that compelling a proposition in terms of the free games, and nor is it the cheapest way to play the ones you'd have to buy. But then again, hardly any hardware cost, so really hard to compare to anything else.
A few killer deals, or the promise of playing the best new pc games optimally with no extra spend, and yeah. It's definitely the future.
Imagine if Nintendo decided it couldn't afford the hardware arms race any more and jumped on board, with a system you can play on the TV or anywhere, on anything.