it depends how you look at it. Some of my very old recordings have a rubbish mix, which is quite frustrating and makes me want to go back over them. Most of the stuff I've done for the last 10 years sounds great! I play all of the songs differently now, and it'd be nice to record them the way I play now, but I'm not too bothered about that as I see it as capturing a moment in time
I've not long finished an album with one of my bands. I think it's great but the rest of the band are already frustrated with it. "Not enough acoustic guitar, too much electric, too fast, too shouty" etc etc. As far as I'm concerned the album is a perfect capture of what we were doing at that time so I really have no problem with it. I would say "maybe the more you record the easier it gets to tolerate" but I guess Lennon had plenty of practise