This cover is great!! Good coverage, a little heavy but sturdy.

To help avoid cracking: when it comes out hot out of the microwave don't place on a cold surface!!! Be careful placing it down you don't bang it too hard or it can break. It's a little heavy.
Also try to avoid dishwasher cleaning, very easy to clean by hand. Don't take much room!!

Love the edge to hold and lift it from when hot.

My wife has sought a non-plastic microwave food cover for a long time. This one serves that need. It's glass and can be used in the regular oven as well as in the microwave. It does its job well. It is a little heavy, especially if your microwave is located high. But you can learn how to handle it and avoid dropping it.

I love my 11' Cover n Cook!
Relevant personal information for this review: I am a mom of young kids. I don't have a lot of kitchen storage. I don't have a lot of money. Being environmentally friendly is important to me & the dangers of plastic, both the environmental impacts & the potential negative health impacts, matter to me.
This product is awesome, what a brilliant idea! I use this lid to help keep my microwave clean & keep my food from drying out. The 11" fits perfectly onto my dinner plates. The cover is deep enough so that the lid won't touch my food. My small plates fit completely underneath.
It is vented-but just enough-not so much that splatter will escape underneath the vents. I like how the vents are scalloping around the edge, it's pretty.
It's important to me that I can use this one product for multiple jobs, because I can't afford lots of kitchen products & I don't have the space to store them. This is plenty big enough to use to bake 2-3 chicken breasts or 3-4 porch chops, a medium-large amount of casserole. Then, it's also a lid/splatter cover for microwave. Another thing I'm happy to see is there don't seem to be seams, the glass feels continuous. I heard bacteria can collect in seams so in terms of staying clean & being easy to clean, this was very well designed & hits the mark.
I'm always happy to ditch plastic. Every little bit matters. It seems like it's virtually impossible to completely avoid plastic as an average American family, but every little bit helps. I feel like each time I use glass instead of plastic it's a win & this lid makes it super easy & inexpensive to ditch plastic wrap or plastic containers to heat food. Actually, over time I'm sure I'll save money not buying those products. I'll be giving these as gifts to several people. It is a one size fits all gift & is eco friendly.

This glass microwave plate cover fits perfectly over our standard sized dinner plates. The vented ridges on the bottom is a very smart idea to let the heat and steam escape. And the rim around it makes it easy to take it off the plate when we're done microwaving. It cleans very easily, although it's a tad heavy.

I like that it is sturdy, and I don't feel that it would break if dropped. The only thing I wish it wasn't so heavy, but I guess that's the trade-off.