I like wikibuy and have used it for price comparisons, guidance and whatnot. However, I would have given a 4-star+; the problem is that over that last couple of months wikibuy doesn't appear on sites like Best Buy and many others. In this arena, there are many sites that seem to have "blocked" the ability to use it. I whitelisted wikibuy, bestbuy, lowes, etc. It worked with Best Buy with the whitelisting...then it didn't. It was a temporary fix that no longer works in tandem with the sites I visit. That's not to say it's not beneficial, but at this point I have to go the wikibuy site and manually add items (using product numbers) to my 'watchlist'. Working in IT, it's surely not wikibuy's inherent issue...it's that it must be being blocked in this technology-ridiculous world.