Yes, I use Verve / B&Q multipurpose compost, which I buy in their large 120 litre compressed bales. Heavy to handle, and as a wobbly old geriatric I have to evolve a technique to get them into the car, and then to get them to where I want them on the allotments. But it seems generally good quality, and I use it for seedtrays, potting on, and planting out larger bulbs and plants into big tubs. And as the top layer in my large raised beds improvised from pallets set upright in the ground .
In my allotment greenhouses I've been using growbags for several years, rather than planting in the ground, but I've had disappointments over the last couple of years - variable growth rates, and during this last year, several growbags sprouting sedge-like plants that you see in poor quality fields. So for this year I'm considering planting my indoor tomatoes, peppers, cucumbers, aubergines and melons in large pots or tubs filled with the B&Q compost.... (But at the moment I'm concentrating on NOT setting up my seedtrays in the conservatory at home for all those tender plants - I've long had a compulsion to start sowing much too early, followed by all the problems with leggy plants that want to go out to the allotment un-heated greenhouses while it's still too early. I'm provisionally setting 16 February for first sowings....)