I like my Cat 60, especially for $240 at Sam Ash! My opinion may change as the speaker breaks in, but so far these are my thoughts:
Pluses
-The new models are consistently great.
-Very flexible.
-Low volume sounds are excellent.
-Between the dynamics with pick attack and ability to adjust the sag, this can even feel like a tube amp!
Minuses
-The amp lacks bass, and especially deep bass. I get it, the design is open back which generates less bass, but my open backed tube amps produce all the bass I needed for big, Fender-y cleans. Line6 went with the most open back cab design I've seen, maybe that is why thr depth is lacking.
-More Helix models of Fender, Vox, and Orange amps please. Helix has several options starting with "U.S." for Fender, "Essex" for Vox, and "Mandarin" for Orange. The Catalyst doesn't, and I'd pay for those models.
-More editing controls would be welcome. My last modified tube amp gave me more sound shaping options than the fully digital Catalyst Edit software does!
-Please put a cheap screen on this.
-I should have to hold thr Manual button down to change to my presets. I wish I could press the Manual button, have it illuminate in a different color, then use the model selector knob to access presets.
-I don't like that if I'm using Clean A and switch to Crunch A, that when I go to channel B, the amp will switch to Clean B. I wish this was an option in Catalyst Edit.
Models I especially like
-Archetype Clean - Good cleans. Not amazing, but good. BTW, I felt the Blackstar Silverline was superior with cleans, but it has an expensive speaker and closed back for the necessary bass.
-Elmsley - Good model. I cut out some bass and use this for a top-boosted Brian May type sound.
-Ventoux - Can't get enough of this combination of a midrange-y Orange and Tweed! Great stuff from this Tweed - Orange hybrid.
-2204 Mod - Good Van Halen-y sounds can be had. My Brown Sound in a Box pedal does it a bit better, but it can't also do AC/DC like the Cat can.
Models I don't like
-Clarity - 1 month ago I had two tube amps. Both the Marshall-y one and the Fender one did cleans way better. The Catalyst lacks enough bass for great clean voices.
-Oblivion - Badonk does the high gain stuff better.
-Voltage - I much prefer the 2204 Mod for this type of sound.
-Kinetic - The distortion is harsher than I like. With a highly touch sensitive model, I want to be rewarded with a more pleasant distortion when I hit it hard.