Mamamia’s Tried and Tested series is your weekly review of the latest to hit our desks in beauty, health and wellness. You won’t find any #sponsored content here, just honest, relatable and independent advice. This week, Senior Lifestyle Writer Erin Docherty reviews Rumble Boxing to see if it's worth the celebrity hype.

I've been working out in my garage gym for the past three years. Like, since the whole COVID thing started. And honestly, I like it. Goodness, there are many benefits in comparison to when I used to train in the gym.

No staring. No sharing weights. No yell-y trainers. I can listen to whatever I like ( You Beauty and MamamiaOut Loud, obviously!). It's a very good time.

But. I have to say — I do miss certain elements of going to the gym.

Specifically, group fitness classes.

Being the competitive Sally that I am, there's just something about group fitness I thrive on. I always want to... beat... the person beside me at whatever we're doing — which makes me push harder.

And I can honestly say, working out alone has really made me miss that.

Watch: Speaking of fitness reviews... here's what happened when Mamamia's Chelsea McLaughlin tried a workout by 'Commando Steve'. Post continues below.

So, when I was offered to try Rumble Boxing at Bondi Beach in Sydney, I (squat) jumped at the chance.

I'd heard about it before — mainly because of the celebs. The celebs apparently love it.

It's supposedly Kendall Jenner's go-to workout. Justin and Hailey Bieber are also partial to it. Kevin Hart, Selena Gomez and David Beckham are apparently all about it.

But enough name-dropping. I was keen to put it to the test and see if it really was worth the insane hype.

Here's what happened when I tried Rumble Boxing.

What is Rumble Boxing?

In short, Rumble Boxing is a fitness class that's half boxing and half weights.

It goes for 45 minutes and there are 10 rounds in total. You can choose whether you would like to start on the bag or on the floor first.

And before you ask, there's no experience necessary. I haven't boxed in about four years, so felt like I was starting from scratch.

As for the weights, you can choose whatever you're comfortable with (a range of weights are located underneath each individual bench).

Before you start punching bags or lifting weights, the trainer (who is situated in the middle of the room on a little podium situation) will take you through a cardio-based warm-up.

Then, it's gloves on. You'll do three rounds of boxing on the bags — the trainer will call out the combinations, but they're also shown on the digital screens around your designated station. Between each round, you're able to catch your breath during active recovery.

You'll then switch sides, and those on the floor will switch over to the bags and vice versa.

On the floor, you'll do three rounds of strength and conditioning using dumbbells and your body weight.

You'll then go back to bags and do two more rounds of boxing combos, before finishing off with two rounds of arms and abs on the floor.

Sounds like a lot, but during the class, everything is super clear and the trainer (and the digital screens!) breaks down the format as you go.

Okay. How did you go with it?

When I walked in for an 8am full body class on a Saturday morning — it was absolutely PACKED. There were people leaving from the 7am class, and a whole new wave (me included) taking their spots.

The first thing I noticed when I walked in was the giant red kangaroo wearing boxing gloves, but also just how CLEAN and FRESH everything looked. Like, it didn'tfeellike a boxing gym. It felt really... fancy.

Like, can we just take a minute for this aesthetically pleasing wall of white boxing gloves:

So Instagrammable.

The walls are covered in black-and-white images of celebrities from the 90s — like Tupac, Brad Pitt, Kurt Cobain, Cyndi Crawford and Sylvester Stallone.

Everything just felt VERY cool. And everyone in therelookedvery cool, too. (Me on the other hand...)

Anyway.I chucked my stuff in a locker, grabbed a towel and a pair of gloves at reception (FYI — you have to rent or buy the gloves after your first time. So, I brought my own pair after this) and found my spot behind a black boxing bag.

Just a note on the 'spots':When you book your class online, it gives you the option to select what side of the room you want to start on — the strength side or the boxing side — along with an allocated spot. That way there are no annoying mix-u