MXR Super Comp: this is a great compressor, it is fairly quiet, it squeezes really good, gives you lots of sustain and you get lots of punchiness out of it , but just like the dyna comp you will lose a little low end until you a bring the 3rd knob (attack) down, and the sensitivity up, and this makes it almost transparent, and very clean with all of your normal low end, almost like it is not even on, in my opinion the pedal fixes the issues the dyna comp had. i originally had the BBE opto stomp, for one day, and it was a great compressor esp. when used with my american fender jazz deluxe, it was quiet and smooth, but My USA G&L L2500 has really hot Pickups, and i needed more squashing then what the BBE could give me, so i took The BBE back to Guitar center where i ordered it from and went to another local store and got The MXR Super comp, anyway just wanted to say they are both Great, but if you have really hot pickups on your bass, the MXR might just be for you, and if you get this Pedal remember the attack knob makes all the difference in the World. Aguilar Tone Hammer: I love this thing, it does not color your tone at all, it is really quiet when engage is on, the EQ is awesome esp. the mid and Mid Freq. it really shapes the tone nicely and is very modern sounding. When you turn the AGS on it gives you a very tubey vintage type of tone, and when you turn the gain up you get a very warm overdrive/distortion tone that is killer, this thing will never leave my pedal board. The only Negative is (if you call it that): 1.When AGS is on you get a little hiss, but its not that bad at all, and is to be expected, it behaves allot like a tube amp would when AGS is on. 2.When AGS is on the volume goes up a bit, but to me it is not that big a deal, you can just leave AGS on and keep the gain low and it is pretty quiet and warm 3. The battery compartment is fine i guess just a little odd, also it eats batteries for lunch, but it is 18 volts what do you expect, i highly recommend getting the Power Adapter with it, no one locally in Las Vegas has 18 volt power adapters for this, i can order it off the internet, and i am going too, just save yourself the time, and get the adapter with it, if you dont you will be getting one soon after buying it. i hope this helps people, and i want to thank bongomania for helping me find the right compressor, you rock!