I play predominantly country and older rock. I keep my amp clean and use an OD-3 for a light overdrive and have always used a Tube Screamer or variant such as an SD-1 for the times I need a bigger solo or a little more crunch. It has served me well for years... Last week I lost my tube screamer as part of a much bigger trade toward a vintage amp. The amp is harder to find than a stock tube screamer so I had no problem giving it up. I'm not one that likes to spend any cash... so I proceeded to trade an an set of MIM bass pickups for a RAT 2. My thought was... "somebody will trade me a TS-9 for a RAT". Well, I had a gig last night and took the RAT for a spin. I must say, I'm going to need to evaluate this a little longer. It was very different from what I am used to, but I really enjoyed it. I set it mildly (gain around 9:30) so I could use it as a 2nd overdrive option for rhythms, but when stacked with the OD-3 it really sang on the big leads. I was surprised at how touch sensitive it was considering the mount of gain it has on tap. I used to own a big box Rat about 15 years ago... but I obviously ignored it's potential.