I have been riding on these wheels for about a month now and I'm very happy. The combinations of Spin wheels and Corsa tyres provide a very comfortable ride, they absorb most of the bumps and uneven surface, keep the wheels on the ground instead of bouncing around loosing power. When pushing hard on cobbles or very rough surface I'd normally loose the smoothness of pedalling and power as your wheel leaves the ground for a split second, so that you'd be doing micro sprints to keep the power up. Having said that, the steering is very sharp and predictive. I tried leaning in to corners as much as I could, normally at some point you'd feel your rear wheel skipping, but I haven't experienced it yet on these wheels and tyre. #critlean was definitely lower than 45° at speeds above 40kph and I felt very confident about going into any corner without much effort or worrying about not coming out of the corner at the other end at all. With my previous wheels I used to experience some rubbing of braking pads when going up hills, as the wheel flexes a little under my weight, but with the build quality, spoke tension and carbon rims there was no flex, or none that I noticed. Crosswind is another thing, these wheels are only 45mm deep and they're equally round at both ends, therefore making the wind vortex the same on both sides, so it doesnt cause any major disruption to your handling.
I can't say that these wheels and tyres are a lot faster than the ones I've ridden before, as I haven't done any proper tests yet, but it certainly feels that way - they are more aerodynamic and have less rolling resistance. The only downside is the braking, it's not as sharp as a aluminium or exalith surface, but as Mario Cipollini said “If you brake, you don’t win” or Peter Sagan "we were going to crash because I wasn’t going to brake", it's just needs some getting used to.
So if you want to have fast, comfortable and wheels, that will give you confidence click this link here.