I use it constantly. I've ordered 3 times from them in the last 3 days You see their little vans all over SF.

The free delivery and fast turnaround makes it incredibly convenient. You even get better prices since you can comparison shop before you order.

I stock up on bulky and non refrigerated items from Costco through GSX. Paper towels, cases of Mexican Coke, cereals and snacks, shampoo, and whatnot. It's doubly better that I can use my 2% back Costco membership and get Costco coupon book deals too - like the Frozen bluray for $15-ish the other month.

I'd easily pay $3-400/year plus delivery fees to get perishables and alcohol too. I don't use Postmates for this because I don't know what's available at the store, and Amazon is okay but the pricing isn't the best. Instacart is the closest to GSX in terms of convenience but then I can't use my membership, which is a bummer.

i use this all the time and love it. this is definitely the future, once you start using it (and services like it) you cannot go back.

same day delivery has the same magic feeling that amazon once had with prime. it just feels too good to be true.

I order paper towels, deordorant, toothpaste, blue bottle coffee, salad spinners, etc. Great for drug store items that come to you.

yes, people absolutely use this - and seems to be loving it.