Pros The Belkin Ultimate keyboard for iPad is the best I found.
It's also a cover.
Don't add a lot of weight.
Can continue to use the iPad in tablet mode, what many keyboard can't do or need to bring with us as an accessory.
Cons My only problem is that the magnet often turn off the screen in tablet mode (not always but often). I thing that the contact can be done with the cover of many by my hands. I turned off the Settings and fortunately I'm used to push the button.
Summary One upgrade to repair the unexpected magnet contact and it will be perfect.
It's solid, made in aluminium for the keyboard cover and a durable plastic for the iPad cover.
Excellent and nice for professional use and continue to read in the subway.
Also, perfect for a lap use.