Summary: This oven is amazing. I did some shopping around looking primarily for the features I wanted with an emphasis on long term reliability. The oven arrived on time. I was pleasantly surprised at how easy the installation was. Even installing it in a new location (no existing vent) in a house built in 1929 turned out to be very straightforward and the directions were very clear. We have had it for approximately a month and it works very well.
Summary: the none it was replaced was more than 25 years old and this is one third more powerful is much easier to program and exactly fit the space. Of course it looks more modern and does many more things.
Summary: I don't think there is much more I could expect from a microwave. I have had this product installed for a while and find it makes cooking tasks so much easier. I'm not the pro chef and it makes tasks such as defrosting so simple. No guessing how long, what power, or when to break apart,etc. With my old microwave, I would always seem to wind up with larger chunks of cooked meat.
Summary: much less expensive than other name brands that do exactly the same functions. We've had this for a few months, has worked like a champ, and I still haven't used it to it's full potential. The oven is a bit small, but since we seldom use it for baking, that's not a problem for us.
Summary: We bought this microwave/convection oven for use in our motor home. It fit perfectly in the opening which was a plus. And, it works perfectly which we found out on our last camping venture. I would recommend the R-188OLS for any over the range usage.
Summary: I needed to replace my older Sharp Microwave/Convection oven that had stopped microwaving after 8+ years and looked and compared all other brands and models both online and in the big retail stores. Many don't display the Sharp brand, and I really like to physically see an item before I purchase it. I had been very satisfied with my 2 previous Sharp microwaves that gave me many years of repair-free service and I also like the push-button feature.
Summary: This is an excellent convection microwave combo. Perfect for use instead of a conventional oven for a small family or for those times that a second oven is needed & as a microwave, too. The installation instructions were almost nonexistent but once installed it's been great! So many features, such as Sensor Heating & Sensor Cooking in the microwave mode. The convection oven has both preprogrammed times & temps with "compu" settings or you can enter your own.