What is it w/microwaves and regular ovens? I bought a microwave a while back to replace one that was haunted.
The old micro thawed a pound of hamburger in about eight minutes. The new one's manual calls for
15+ minutes. Hell, I can do it that fast in a warm bowl of water!
Our regular oven was trying to burn the house down so the 'rents went out and got a new one. The old oven would preheat to 445 degrees in 4 minutes 15 seconds (I used 445 because 450 takes an extra 2 minutes 15 seconds, what's 5 degrees?

). The new one? 12-16 minutes so far. And the new one when preheating shows the temp instead of time remaining,<--which I find more useful.
I was expecting better heating performance, especially when you consider the price: $666 and change, I shit you not.
I told them "If you'd waited a couple days, I'd have bought a used one for a couple hundred bucks. Here's a couple hundred bucks."