I have both. I have Rhythms in sizes 0,1,1.5, and 2. I also have an evolution in a size 2. First, I absolutely love my Evo. It is everything I could ever want in a trout reel. I have it on my Scott G2 and use it the vast majority of the time. However, the reason I have so many Rhythms is because they were $100 less each and had the identical drag system to the Evo. They are slightly heavier, but still very light. They are reliable and the spool release, drag knob, and reel handle are all very functional. I was very disappointed when they discontinued the reel. If I could afford to buy 5 evolutions, I would. But, if you can pick up a rhythm for a good price, I would go for it.
Is this from some individual or did you find them somewhere else? I am always on the lookout for these reels. Hard to find.