I knew Xotic made great pedals as I already have an Xotic EP Booster in my guitar rig. I'd been looking for a better compressor pedal for some time (my Marshall ED1 was getting a bit long in the tooth) and as soon as I read that Xotic had released the SP Compressor, I knew I had to try it. Once I watched reviews and listened to clips on YouTube, I knew I had to have it! But even this hadn't prepared me for how much I would fall in love with this pedal.
It's small. In fact, it's really small. Shorter and narrower than almost every other pedal I have (albeit slightly taller), and I think it would probably survive a bomb attack. But it's not the construction that makes this pedal special. It just sounds "right" - it enhances and smooths out your guitar sound without introducing extraneous noise or impacting your playing negatively. It's perfect for helping clean guitar sounds jump out in the mix and compete for volume with more overdriven tones. And it works great with both single coils and humbuckers (most compressor pedals I've tried don't get on with humbuckers).
In summary, if you're looking for a compressor pedal, this is the one to buy!