Pros
A lot of Glassdoor reviews are unhelpful reviews from disgruntled employees or blank 5 star reviews, which, may not always be honest. I worked at Enterprise for over 3 years and was a top performer. I was a 3 time branch manager before I left to take another job so I've experienced a lot and want to help you make an informed decision because Glassdoor reviews have always been helpful to me. There are many pros to Enterprise and while I'm not a raving fan, I would recommend them overall to a friend or family member that is coming out of college or wants to gain basic sales/customer service/business/managerial experience. Enterprise has a strong reputation for their training program for a reason. You learn a lot early on. Basic sales and leadership skills will transfer to almost anything you do in your life. Their mix of formal training and trial by fire takes you out of your comfort zone and helps you grow. However, if you want an easy job, this is not for you. Also, depending on the regional leadership and the team at your branch, you may end up really appreciating your coworkers, and maybe even your managers. I've been privy to some incredible managers (and some terrible ones too). If you work hard, work smart, and grow in your abilities and show leadership, you can get promoted very quickly and your pay will increase with it. (although you will not get every promotion you think you should and that's alright). They will try to sell you on being able to make a million dollars a year someday. Beware, some do, but very few. Not all have that kind of potential and if you do, you will have to decide to be all in for Enterprise at some point to go that far in your career. Enterprise has very solid benefits, health insurance, and a decent starting salary as well.
Cons
There are aspects about the job that will always be stressful, no matter how good you get at your job. There will always be times when you run out of cars to rent at some point and have to try to find cars at other locations that you have or may not be able to obtain, while a line of customers is breathing down your neck. This is not all bad, as it will hone our sales ability and make you a better problem solver. You will learn to listen and ask good questions. However, some situations will go south and some customers will be jerks no matter what, so be prepared for that. The hours are indeed long but can be manageable. You will need to learn to be efficient with your time at work, but also to tell your supervisor no when they want you working for hours after closing to be the norm, not the exception. You will clean cars and nobody will want to hear you whine about it. It's not a big deal. But be ready to do it. Lastly, the company does seem to be moving in a direction of trying to trim costs by cutting manager's compensation and things like fun company events. Your front line managers are the backbone of the company because they have put in the work, learned the skills, and have a direct impact on retention. The events may seem frivolous, but they bring the areas and regions of the company together and increase cohesion. (However, it must also be said that, at least in my region, they have raised PTO and pay for starting positions). Just know that with the current trend, you will ultimately be paid less to do more work than your predecessors.