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Mountainside Fitness

4.5

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Location details

4355 E Irma Ln, Phoenix, AZ, 85050, United States

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WeekdayScheduleStatus
Mon4:30 a.m. to 11:00 p.m.
Tue4:30 a.m. to 11:00 p.m.
Wed4:30 a.m. to 11:00 p.m.
Thu4:30 a.m. to 11:00 p.m.
Fri4:30 a.m. to 9:00 p.m.
Sat6:00 a.m. to 9:00 p.m.
Sun6:00 a.m. to 9:00 p.m.
4.5681 reviews
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Haylee B.'s profile image
Haylee B. 
rating
4 months ago

I received my 5-day pass because I live out of state and am visiting a friend because I plan to move close by next month, so I thought I would check it out.. I got the 5-day pass no problem, got to the gym was greeted by staff who took my *out of state* id to get signed in, had no problems so I went about my workout. After I was headed out, I was told that before I leave I needed to talk to one of the other front desk workers to get my pass, which I had already received so I was a little confused. As soon as I walked over to... read more

Ethan B.'s profile image
Ethan B. 
rating
4 months ago

My experience started nicely, with the front staff being kind and attentive. Bailee was also very personable and gave me a tour, but unfortunately my experience went poorly from there. While there were plenty of great machines, the plate loaded machines had their weights scattered all around, forcing me to search through other machines for the weights I wanted. That should be an easy fix for staff though. Honestly, not a big deal as long as it gets improved. After my workout I went to the sales rep, Tatum, and she asked ... read more

Trisha F.'s profile image
Trisha F. 
rating
7 months ago

Front desk - No issue, always greeting you politely as you walk in- I've been coming here since 2017 before I became a MOM. but M-KIDS (CHILDCARE) and their Staff needs training. 20 minutes into my cardio workout, they Text me For parent snuggles and interrupted my workout. When I got there, (NOTHING was going on) WEIRD - WHY DID THEY INTERRUPT my workout? The girl then said she has to write my son a first warning for making another kid upset & my son has to be sent home for the day "she said" oh where gonna hav... read more

Gary T.'s profile image
Gary T. 
rating
7 months ago

The gym itself is very good. A few observations, however. 95% of all patrons have AirPods or some kind of headphones on. Why then are they piping in such horrible music? Did anyone ever think of a silent gym that would be a great advantage. Next, I don't find the locker room to be particularly neat or clean and too many of the showers too often have no soap and even a lack of water. I hope they could solve the locker room problem or I'll have to try another mountain side or another gym altogether. 

Jasmine V.'s profile image
Jasmine V. 
rating
8 months ago

I want to start off this review with the good. The gym itself is clean and has such kind front desk staff. They were always willing to answer any questions I had. I also appreciated the wide variety of machines. Why I am giving this facility 1 star is due to the child care. It's makes me really sad to say that as I have told many friends about how amazing the childcare is here. It was until it wasn't. Yesterday July 22nd 2025 I walked into the childcare because the cameras were not working on the elliptical and I saw the w... read more

Robert C.'s profile image
Robert C. 
rating
11 months ago

I called three separate times to cancel my membership, and each time they insisted I come in person. In 2025, we have tools like DocuSign--canceling shouldn't be this difficult. The whole operation feels like a mafia-run business, and I wouldn't recommend this gym at all. They even insisted I pay for a membership that I haven't used in three months. Avoid this place at all costs. 

Charlene P.'s profile image
Charlene P. 
rating
a year ago

I absolutely love the childcare they provide at Mountainside! The staff is so nice and they treat all the kids like their own. I love that this gym gives families the option to bring their kids with them! 

Bruce S.'s profile image
Bruce S. 
rating
a year ago

Great gym, great equipment, great folks. Everything is clean, everything works well and is well maintained 

Leigh L.'s profile image
Leigh L. 
rating
a year ago

Mountainside is the best! I mostly do Cardio and they have a lot of stair machines, elliptical, and treadmills so there is always space open. Big, bright and clean, love it especially when it starts getting too hot outside!​​ 

Frequently asked questions about Mountainside Fitness

How is Mountainside Fitness rated?

Mountainside Fitness has a 4.5 star rating with 681 reviews. 

When is Mountainside Fitness open?

Mountainside Fitness is open now. It will close at 11:00 p.m.