Number one would be why the change from incall to outcall?  Maybe she didn't want to get the room.... IMHO, def not normal, esp at the last minute.  I would have canceled.   You ask for a good place to host incall, well, if she is coming to you, it's an outcall, not an incall.  Incall means you go to her place.  You do not mention where you are, so how are we supposed to tell you a good incall location?  We ain't mindreaders here.

Swim

Set up an appointment with provider, supposed to be incall. She requests outcall last minute. Sounds fishy or perfectly normal?

Also, what is a good place to host incall?

She might have been hoping to get a little more interest and hold an incall and so waited til the last minute to let you know she needed you to host.

You might want to see if she would rent the room & you reimburse her in cash...  so you leave to tracks.  
BTW, NEVER leave a provider in possesion of a room rented in your name.  If someone hits the mini-bar or damages the room or even she decides to incall from the room you rented...  but you must guarentee with a Credit Card even if you pay cash to the hotel.  In the "what if's" mentioned, the trace comes to your door.

Maybe her roommate came home.  Maybe she has an unexpected visitor.  Who knows?

As far as a good place to host incall...again, give us some context.  Are you single?  Married?  Live in a small town?

She said it was because she could not secure a hotel. Ended up hosting at my apartment.  Was a little freaked out at first, but she is a well reviewed provider so i figured it would be ok.