The venue's website says: Meyers Parking - Park for up to 10 hours at Meyers Times Square Garage for just $25 when purchased in advance - up to a 45% savings. Prepaid parking vouchers can be purchased at the PlayStation Theater Box Office or at PlayStationTheater.com. Meyers is conveniently located just one block east of at 146 West 44th Street (between 6th Ave & Broadway). Additional entrance at 141 West 43rd Street.
If you arrive before doors you can skip the line. If you can't stand while you're waiting, they'll provide a chair.
There is an elevator which brings you down directly to their disabled section, which is also right by the bar and merch. There are also stairs and escalators to the main part of the venue.
When sitting in this section, they will allow you to use a bathroom backstage rather than go through the whole venue to the other side for the main restrooms (though those do have disabled stalls/sinks). The staff sometimes gives you free water bottles when you're sitting in the disabled area, and they check in with you throughout the show. There is also a medic on site usually should you need help/assistance.
The stadium seating is usually GA for anyone who wants to sit too.
If you're in the accessible seating area then you'll be allowed to use the backstage restroom instead of going to the other side of the venue, but the main restrooms are also accessible.
"Merch is in the main lobby under the escalators and the phone service can be spotty since you are downstairs below ground level."