@gochurchgo yes they will take you almost there, but the step up to the expensive stuff is as noticeable as going from no isolation to the disks of silence and Nobsound.
The most benefit after the TT was under the speakers and subs, that was a big step.
@goofyfoot if you try them make sure that you play with the space between the pucks. In my case anything more than 2mm was horrible, then I tried 1mm-1.5mm, and we were able to hear the difference.
The gap is room dependent as each room/system has difference resonances.