correct, the MSF gives you a road test waiver. Take the written in the morning too so in case you're hungover or something and miss a couple questions the line should be short and they might let you redo it right away...
you also get the insurance discount and depending who you get the course from a discount at cycle gear.
If you don't want to deal with all that just go do the road test and written all in one day. easy stuff anyways, unless you're hungover and umm miss a couple questions on the test and have to redo it... in case i didn't mention that part yet.