I couldn't disagree more. I think this amp sounds great. I have the RG60. It's light weight has a 12" speaker with an effects loop. With other amps I would have had to pay for a 2 12 to get an effects loop. Weird. Anyway I think the tone is tight and punchy. It also has a very nice clean channel. I have noticed that my ESP sounds better on this amp than my Ibanez. Its often a case of the right combination of guitar amp and effects to get the best tone for yourself.
Here is a link of some samples. Judge for yourslef.
http://boomp3.com/visitor/d707d55e6c5e/files
+1