I used Oven Pride in August and again today for the 2nd time. (post Christmas oven dirt was pretty bad!) Hmmm.... am not as impressed as I was the first time I used it. First of all it's not as good on the actual oven as it is on the oven racks (which you seal in a plastic bag for a few hours). It softens the dirt a bit but I did have to apply a good bit of elbow grease afterwards plus some Cif, wire brush, vileda cloth,sharp knife etc to remove the grime! With the racks make sure that each rack is well coated in oven pride...putting 3 racks plus a drip tray in the same bag for cleaning is perhaps expecting too much (though I did shake the fluid around and massage it onto the racks during the 3 hours I left the racks in the bag). It's probably better not to overload the bag. I had to do a bit of scrubbing with the vileda cloth afterwards but, in the end,the racks and oven are gleaming.... just not without effort on my part! There ain't no miracle oven cleaners, I'm convinced of that!