We had two of these at my work and when the other two (not GE brands) had died we opted to purchase these new two as GE since the first two had lasted so long. There is extremely high usage on these microwaves, we have over 200 people and they have lasted and work great!
The price is great as we were able to get them for just under $100 on sale. The white ones tend to show spills more than the black but I would recommend either color if it matches the kitchen you are using it in.
The size is good, a bit larger than I would like at my house, but it fits large dishes and tall cups very easily. It was not as heavy as others when we move them for cleaning. They are definately durable, reliable and an overall good buy. They cook at a very consistent level and have many options included in the unit.
They include auto preset buttons for certain types of foods. The buttons last a long time and do not crack as other type of microwaves do.
I would definately recommend anyone buying this type of microwave... good price, value and reliability.