I had one of the cast iron tabled versions variously stocked as Record, Charnwood and for a time Axminster. It was a disaster, absolute rubbish and impossible to use accurately. To their credit Axminster took it back. After that I had planned to make my own but then an urgent job for my son came up and I needed a router table quickly. I got one of the Rutlands ones on special ( very frequent) and after a bit of fettling it is surprisingly accurate. No frills but it does the job. To be honest I use the router less and less these days, I have gone back to hand tools under the influence of Paul Sellers and I rather wish I had done so sooner.