When choosing a kick boxing club there are a few things you need to keep in mind. The first is that your primary goal should be finding one that is at your current fitness level.
Obviously you need to be put into a class that will be working at a pace you are comfortable at or you are only going to get lost, making it even harder to get a proper workout in.
Secondly, if you can find a kick boxing club that is comprised of a lot of different levels, this is even better because then as time goes on and you progress further you will not need to look for a new place to train. Ask a few questions before signing up about the history of the group and how long it has been in existence because this will also help you predict how long it will last. That's not to say a new organization won't last, however if it has already successfully been around for five or more years, you can feel more confident that they are likely going to be sticking around.
The next thing to look into is the quality of instruction. Make sure all the trainers there are certified and that you get along with them. If possible, arrange to meet your potential instructor so you can get a feel for their training methods. As there are different schools of thought in how to go about training for this sport, you want to make sure you are in line with what the instructor believes.
Lastly, consider the type of training schedule you are looking for. Does the gym have open training times where you can go if there are no classes in use? This could come in very helpful if you happen to be a very busy person and like something where you are able to work more on your own schedule. Also inquire about how many different classes are offered each day so you can see what the range is to choose from. Are all classes general or do they have specific classes geared towards certain aspects of the sport? These are a few questions you need to be thinking about.
So be prepared when selecting a place to train. Doing so will help to ensure that you get the most out of the time you put in.