Well in short, the answer would be yes if room is available! I believe the add on is either $125 or $150 per night for adding concierge to your reservation. It's quite steep and if you won't use $150 a night worth of sodas, bottlesd waters and little snacks, it's not really worth it to me!
To answer godalejunior - dues vary depending on which resort is your home resort and how many points you own so that's a hard question to answer without knowing more.
Andrea