ZERO problems meeting in ANY hotel lobby ever! It is beyond common and actually expected.
It's only if she tries to go up to your room that there would possibly be any issue at all and as said above, that would only be in some very cheap hotels.
If she wants to come up to your room to meet you then its done. She absolutely plans to have sex with you and if your lucky you can tag her before you even go out to dinner. Find a non-creepy way to give her a hug and hold on a while, rub her head with your cheek and say some soft things.. Next thing you know the clothes will be flying and she'll be jumping on the bed in her underwear..
OTOH, if you think this "might be the one" and she volunteers to come up to your room to get you having never met you before.. Dude, that horse has been ridden by the entire basketball team. Have your fun and move on. lol.. I promise you, as soon as you leave town she'll be meeting some other dude in his hotel room.