I keep coming back to my PODs for another listen, but I still hear the same things that bothered me years ago   I will try to describe what I hear: It seems unnaturally fizzy from top to bottom - the fizz seems attached with digital super-glue and is always there. There is also some kind of disconnect between the player's dynamics and what comes out the other end.  Some might say I use too much gain but I don't notice this as obviously with other software. The Cab modeling was very good when first released (many years ago), but now sounds rather 'choked' and one-dimensional to my ears when compared to the current software competition - once again, unnatural fizziness seems to infest a lot of the Cab selections.

PS:  When I refer to unnatural fizz, it is not just the amount of it, but nature (or non-tube-nature) of it.

I have a habit of occasionally going back to my older modelers to see if I can coax something new out of them - to see if there's some gold I can yet find - and sometimes, I am pleasantly surprised (the Boss GS-10 being an excellent example). For me the current L6 modeling algos are showing their considerable age.  I actually find it easier to get good tones with 'Amp Designer', the new modeling plug-in that comes free with Logic 9 - go figure....