Can anyone recommend a good tonneau cover to look into?

I'll be picking up my TRD OR at the end of the week and its looking like I won't be able to get the OEM Tri Fold Tonneau. Can anyone recommend a good tonneau cover that I should look into?

I'm looking for a tonneau cover that is:
-Easy to install and remove (one person job)
-Easy to store and doesn't take up much space (I guess my only option is a tri fold cover)
-Relatively durable (I don't plan on standing or sitting on it. Just looking for something that can keep my stuff dry in the event it suddenly rains while I'm out and about).

Doing mild research I kind of like the look of the UnderCover Flex Cover. Any advice?

 

I really like my BAKFlip cover. Have had it 4 years with no problems. It has some hail damage, but still works great & doesn't leak. Love that I can drive with it propped open to haul taller items.

 

Keep an eye out for the OEM cover on craigslist, I was able to find one for a good price.

 

I like my Extang tri-fold tonneau but take that opinion with a grain of salt because it's the only one I've ever owned...