Yes, still have it, still use it. I'm a bit 'amp-rich' at the moment w/ LP, Liquid Gold X, DSHA-3F, TT2, Audio-GD Master 11, and my latest acquisition, Bottlehead Crack w/ Speedball.
I'd say the most noticeable improvement is a matter of 'refinement'. But I'm in the same boat as you -- could never A/B them side-by-side. So it may be that much of my preferences come down to expectation bias.
I do know that I like the sound and continue to enjoy it, even though there are competitors in the house
Seems like 'back to stock' mostly depends on how non-destructively you can remove the original components. I didn't do the mod myself, so I have no idea how feasible that is, sorry.