I had never heard of them but if you like British style Indian takeaway curries these do the job.
M&S got me a four pack box of the spice mixes for Christmas. - Jalfrezi, Bhuna, Moroccan and Sri Lankan. I should get 14 to 16 portions out of the set at a cost of about 95p for the spices and then whatever for the meat and an onion.
I am just doing the Jalfrezi for tea and it tastes so authentic. 1 for today and 3 for the freezer.
If you are not confident at making curries from scratch with raw ingredients and are not keen on the jars or pouches of sauces these are worth a go.