If you are in So Cal you owe it to yourself to check them out now that they have regular hours and can allow people in. It was tough starting a business at the start of Covid shutdowns.
This is not your average dive shop. Very friendly to all, but there is a tech edge to them. That said I am a single tank recreational diver/picture taker and feel comfortable there. Lots of product but no racks of "accessories". They have BP/W rentals, drysuit rentals, and do a variety of gas fills-
Air, 32% Nitrox, 50% Oxygen, 21/35 Trimix, 18/45 Trimix, 15/55 Trimix, 12/65 Trimix, 100% Oxygen, Argon , and Helium, and charge by the cubic foot, so if you only need to refill a tank already half full- you only pay for what they fill.
They are also trying to redefine what a dive shop is, and build a community of divers. Give em a visit!