I use a lot of dried porcini these days, mostly in my own version of Bolognese sauce and alongside standard field mushrooms in risotto - the umami flavour imparted is incredible. I have been using 25g packets of Merchant Gourmet Porcini Mushrooms
from the local supermarket, but at a couple of quid a pop it's rather expensive.
So rather glad to find these megapacks, which on Amazon's subscribe & save work out at around half the price. And these Cooks & Co ones are just as good as the Merchant Gourmet. One thing you may need to be aware of however is that the size of the pieces of these Cooks & Co varies rather wildly compared to the somewhat more uniform size of the pieces in Merchant Gourmet's packets. Not a problem for me as for my recipes I always chop them fairly finely after rehydrating, but if you are wanting to keep them whole it may be a different matter.