to answer the OP question why not try this.....if you have a local Rega dealer chances are they will have a P6 with Exact on demo, see if you can borrow it and simply listen.....and three responses to look for
1...it sounds better or even much better
2. it sounds about the same
3. it doesnt sound as good
avoid the black hole of endless terms used in the audio world to describe the sound
does it make you want to play records or even play record after record......
then it sounds better
do you kind of alternate your hands up and down.......
it sounds about the same
do you kind of scratch your head while listening....
then it sounds worse
the above comments about room acoustics, phono stages and isolation are all very good points....but one needs to start somewhere.
and simply trust your ears. Just my .02