[This review was collected as part of a promotion.] I’ve used Zep heavy duty degreaser & cleaner for some seriously grease jobs, and overall it performs very well. The formula is highly concentrated, so a little goes along way, which makes it a good value for the price. The consistency is strong enough to cling on surfaces and break down stubborn grease effectively. For heavy buildup, I’ve found the best results come from letting it sit 3-4 minutes and then scrubbing with a stainless steel scrubber. It cuts through grime and dries fairly quickly, leaving surfaces clean. My only downside is the smell - it has a citrus scent, but it’s quite strong and a bit uncomfortable in enclosed spaces.