Thank you so much for the kind words James and welcome to the group. Sorry for the delay. I've been really bad here lately with work and then my other "work" taking upon time. It sounds like you already have a really nice setup. Based on what you described, I honestly would not make the weight bar capability a deal breaker. Since you already have PowerBlocks, a Smith machine, cables, and bands, you have plenty of ways to progressively load exercises when you want to go heavier. I actually think the biggest value of adding a Total Gym to your setup would be for exactly what you mentioned: simplifying workouts, improving mobility, training through comfortable ranges of motion, and having something you can jump on and start using without a lot of setup. You can also make Total Gym exercises considerably harder without adding plates. Increasing the incline, changing body position, slowing the tempo, doing unilateral exercises, and chaining exercises together can take you a long way. I personally don't use added weight nearly as much as you might expect. Between those options, $150 for a barely used Apex 3 with most of the attachments sounds like a pretty inexpensive way to find out whether you enjoy this style of training. I wouldn't feel like you need to spend $300 on the FIT right out of the gate, especially since you've never used a sliding bench trainer before. The FIT and XLS are definitely nicer machines, and I tend to recommend them because of their overall build, size, stability, and versatility. But that doesn't mean you need one of those to get a great workout or to determine whether this type of training is for you. Also, don't worry too much about "bulking up." Resistance training itself isn't going to suddenly make you overly muscular. For your goals of improving strength, adding some muscle, mobility/flexibility, and changing body composition, I think this style of training could complement what you already own really well. And definitely keep looking at the used market. Total Gyms are one of those products where you can sometimes find an incredible deal from someone who barely used theirs. If you end up loving the Apex, you can always upgrade later and probably get most or all of your $150 back selling it.