Tribute is a decent enough session beer but it's far too expensive. The last one I had was at the CAMRA Great British Beer Festival at £4.20 a pint. It's never worth that sort of money.
I went to a small beer festival in Brixham last year where the locals were raving about Proper Job but I don't see it myself. Its just a very ordinary bitter with a bit of cascade chucked in to make it taste 'American'. It doesn't work and at £4.10 a pint it was also far too expensive. They sold a lot, but not to me.
I'll keep a look out for Tribute extra. It sounds good and I might buy some if it's not too expensive.