I traveled with Allegiant Airlines just a couple of months ago and everything went very well. I was taking a short business trip, so I had to stick to a budget. I was searching to book my flight with a low priced company and this airline was my first choice.
Many budget airlines disappoint, but Allegiant Airlines gave me more than I asked for. The tickets had a very reasonable price so I was happy about getting a good deal. Furthermore, the airplane seating is comfy. I didn't get too tired or jet-lagged either. The seats have plenty of legroom, so that's nothing to be worried about. The plane was actually mostly empty so I really enjoyed some quiet time. Thus has always been an issue during my past trips.
If you are wondering about the plane food, there are several options. I got some sandwiches and water but you can also have soup or another hot meal. The crew will help you figure things out if you never traveled with this company before. They are very nice to all the travelers and pretty helpful. You may not get all the perks you get with a higher priced airline, but the service is good. I watched my favorite movies during the flight so I didn't really get bored either. I was pleasantly surprised when I saw the bathroom, as it's very clean. The entertainment options are diverse and I spent my time relaxing and enjoying my flight. You can also upgrade if you need more features.
If you are looking for a budget friendly airline I suggest you give Allegiant Airlines a shot. I think they offer great features for a very affordable price. The company is a good choice if you do not want to spend a lot of money.