This is $209 at the box stores, so not a deal. That said this is a FANTASTIC upgrade for any old table saw. It’s not the best of the best but it glides very smooth and doesn’t deflect. It’s very easy to modify to fit whatever your saw’s holes are, just drill holes and countersink them so the screws sit flush. The viewing window can be adjusted so if you roughly line the tape measure up to your blade you can just adjust the viewing window to set it up precisely. If you don’t bother lining it up at all then you will need to remove the tape and install a new one.
For the price you can’t get another t-glide + fence body + rails of this quality