We owned a Wolf double oven for years, but for most of the years it either didn't work and/or was very noisy. We didn't want to spend the money to get it repaired and decided to look for a replacement. We needed something that fit the tight space we had. The Bosch double oven was too high so that wouldn't work. We decided to look at the speed oven/regular oven combo. We are glad we did. Having the speed oven is very handy. Both are very quiet.  Easy to use touch choices. I would definitely recommend to anyone that wants to modernize their kitchen. This combo is two ovens plus the convenience of speed. I cannot comment on the durability since the unit was purchased only a few months ago... here is hoping we get a long life.