I bought 2 Mohu 50 antennas. I live in Kenner and the towers are 35 miles away. My antennas work great. I have a beautiful high definition picture. I receive 35 channels. The main channels I wanted were the major networks and PBS for my daughter. There are several extras including Me tv, Bounce, HSN.
I've read that tvs in the city do better than those in rural areas. Also, if there's interference near your house (trees,walls, high buildings, etc) it can mess with your reception.
If you do decide to go with a Mohu 50, just fyi, Walmart's website has two for $85 right now. $42.50 a peice is a very good deal. I think their normally $65-70 for one.
You can try them, if they don't do the job, you can always return them and get an outdoor antenna.