Yes, it's a little muddy
I compared both the standard Fender speaker (made by Eminence) and this G10, and the difference is huge. Anyhow, I can't tell you the G10 is an improvement over the stock speaker. In my Super Champ X2, the G10 sounds full bodied, but muddy, laking of shine. There is now way to restore the single coils sparkle by tweaking the eq.
It looks like the G10 can withstand the loud overdrive beat with a little more stamina than the Fender one, but if you are in the clean, glistening side, you may not like the G10.
In the deep side of matters, the bass in the G10 is very full and round. The mids sound hi mid rolled down and kinda vintage.