I haven't tried the Dano one yet, but I do like their little tuna melt trem.
If you are looking for a good sounding, inexpensive trem, I recently tried out the Visual Sound Garage Tone trem in a store and was very impressed with the flavor of the trem. Nice and organic IMO, although it can't do a hard chop.
I think the Cool Cat sounds like a bias tremolo from an amp. It compares to tremolos costing 4 times as much or more. The only neg is the knobs on the end of the housing makes it difficult to adjust at a gig. It could also be smaller. I really like mine. I also have a Tuna Melt. Sounds the same but the knobs and enclosure on the Tuna are so cheap I couldn't see it lasting at a gig.
The Cool Cat trem is my favorite from that line. If I didn't use a Fulltone Supa Trem the Cool Cat Trem would be back on my board. The Tuna Melt isn't bad either for super cheap, but for just a couple more bucks the Cool Cat is the better deal because it's a little more robust.