I had them just a few times and each time they were flipping useless. Always sent me an "alternative" that was beyond ridiculous. I ordered 1 kilo of Italian sausage on 2 occasions and both times got a packet of 250g of sliced deli meat, not fit for my casserole at all and surely the weight alone was a give away.
I ordered a particular wine which was red and they sent me white wine instead?!
I ordered chicken portions and ended up with the wrong weight and smothered in BBQ sauce complete with damaged packaging.
I felt like victor meldrew having to ring them and complain but they did give me a refund on the 4 occasions. I had sainsburys after that, they were faultless but expensive.