If you want to know what they have just look on their website and avoid even entering. You are welcome to enter with anyone who has a card.
As I previously mentioned, the crowds and parking have complicated PriceSmart. I will continue to shop for what I need but buy it online and just go pick it up at the store. No need to park and enter.
Their delivery service is super cheap, it's about 250 pesos for same day delivery.
Their bath towels are very nice, the MS ones.
I don't recommend their electrical items, as has been said there's a much better selection in other stores. For electricals I would definitely buy online, stores like Corripio and Plaza Lama often have online only prices which are much lower than the stores (for Corripio they always have much higher prices in the store and you always have to ask them for the discounted price, which they then give you).