question about m stand?

mStand isn't really designed for you to use without an external keyboard, as their illustration shows:

Trying to type on the built-in keyboard with your MBP on the mStand would put your arms in an awkward and uncomfortable position.

 

Comfort is a very subjective term. The comfort one has in using it that way would depend on chair height, desk height, angle of computer, and the build of the person (as torso side, and arm length would also play into this). I know I can't use highly angled keyboards, and love the BT Mac keyboard, but my coworkers hate it and say it is too low and hurts their wrists.

Your best bet would be to find one in a store and try it or find a store with a liberal return policy in case it doesn't work for you. I know I would hate to have to carry it to class and back (heck you didn't want to carry an external drive which is way smaller than this).

 

It's okay if all you need to do is type in a URL or something short. It's definitely not something you will like doing.

I only use the laptop's keyboard on the mStand if I have moved the wireless keyboard out of the way because I'm eating at the computer.

 

Depends for me due to my height it was comfortable but a friend of mine said that it was too high up for him.. i guess it depends on quite a few factors