It's funny, the first band I was in, we thought we were pretty basic.
Listening to the echoey recordings now (made in a huge hall with a proper stage using a ghetto blaster on a table about 30-40 feet from the band) we were surprisingly tight, if unsophisticated.
But we were practising twice a week, had a great drummer and were never shy of offering genuinely constructive criticism, so if my basslines were off, I was told so!
Now when I practice to recordings, my aim is to make the original bass 'disappear', which can be tricky.
It's very easy to play sightly behind and take cues from the recording.