Every club is different. Some are run by a voted in board, others are ran by a single person. Some clubs are federated thru either B A S S or FLW which usually escalates the membership fees, where usually the top anglers will get to compete in some regional and national tournaments to qualify for some of the professional events. Others are independent type clubs that's season usually ends in a classic. The majority of the clubs will either have a boater/non boater format where your partner is decided by a draw every tournament, or the club will be a buddy format where you fish with the same partner throughout the season. As far as benefits are concerned I like the fact that the tournament season will introduce you to new and different bodies of water that you would normally not fish.
There are a lot of things to consider before joining a club. First and foremost look at the clubs prior schedules. Are the lakes that the club fishes the kind of water you like to fish? How much do you want to spend? Tournament fees range anywhere from $25 per boat to $200 per boat. Some clubs payouts are very top heavy where others pay deeper. membership fees can range from $25 per person to $150 per person. Some clubs meet once a month, ours meets once a year. Then there is the size factor, would you rather compete against 10 boats or 50?
Bass clubs are great if you get in the one that fits your needs. You will have to do a little research before pulling the trigger but hopefully you will find one. It is a great experience