Yes. Never underestimate a cathode bypass capacitor's ability to impart tonal character into the sound. It's a huge contributor. And while all cap's break in over time, the tantalums are extremely crisp and hard sounding at first and there's also something kind of weird in the mid-bass. I think this has scared some folks away from them. But after a few dozen hours of run time, and even better, actual playing time, that crisp hardness turns into a sweeter more juicy treble and the mid-bass smooths out and in the end you have a very high performance and guitar-friendly capacitor. They'll always have a pronounced brightness to them as it's just the nature of tantalum cap's, but that brightness becomes much more pleasing and warm over time.
And keep in mind we're only talking about using the high end mil-spec types that Dan Healy taught us all about. The plastic dipped types don't seem to have as good a sound and they also seem to maintain a thin, unpleasant crispy edge in the sound.
... and it's just like any other day that's ever been...