My 0.02 cents
Units Design:
No doubt The Glades is a very nice project. The Mews ground floor(Type B) has very big build up of 3498sqf. But is single floor only.
Also is located on lower ground. Some ppl cannot accept this.

The upper units buildup, Type A has 3315sqf and 3208sqf (Type A1). These are double storey design with a room upstairs. The not so nice thing is the entrance is located below the staircase. Not many ppl can accept this.

If you are planning to stay there for 30years, I suggest taking ground floor. Easier on the knee when you are old

Pls note, avoid choosing the units near the LRT entrance at one end.
Some of these units had cracks on them during the LRT construction period. SDP has done the touch up but just to be safe.
At the opposite end, a condo project is planned, South Brookes.

Location:
The Glades has one of the best, if not the best location.
Walking distance to LRT and a mere 15minutes drive to Sunway Piramid. Neighborhood mall, we have Main Place. The new Chinese school is also about 2 to 3 km away.
Pavilion 2 in Bukit Jalih is about 20km away.
Your mentioned location is also very close but Kampung Jawa may take abit longer.

Price:
Expensive. This is because it is in a mature and established township.
In regards to the maintenance fee, I'm not sure I get your point.
Normally, ppl will have passive income e.g. rental income to take care of the maintenance fee. To pay maintenance from your main income is not advisable because u need to pay as long as you stay there with no option to cancel. To make matter worse, maintenance fee goes up along with other things.
Whatever free maintenance period SDP is giving should not be a deciding factor unless you plan to sell in a few years or they give u 5 yrs free.

Other options:
Have you consider other cheaper option around PH as mentioned by bro BRE. Section 7 is also a good choice but subsale option are very limited. Do consider the option of saving the money for investment in other projects property?
There are other projects that are similar to The Glades but location wise may lose out to The Glades. I would not be so fix on finding home near my work location, I rather find work near my home

Lastly, attached image on The Mews brochure just in case u need it.