Was down there last Wednesday during the day. Fallsview lowest they had was 2/5, but it had about an hour wait to get on the table. 5/10 was immediate seating though. Casino Niagara - the older casino did have a 1/2 but the wait was also an hour. Biggest difference between the two is Fallsview has a $6/half hour session fee while Niagara goes with the traditional rake method.
Your better option for starting out is probably to head across the bridge to Seneca Niagara Casino. They have more 1/2 NL tables and the play is always horrible - probably a by-product of the free booze US casinos can give out.
Just call in to Niagara and its not a long wait unless you arrive in the wee hours of the morning when they have only one table.
The play is awful there. I spent a week there in february and the good players you can almost always read like a book, except for a few guys and the bad ones are just bad lol.
I took horrible beats all week and still came out with a profit.
POW's at the fullest.