We've been using them regularly for a few years. Certainly not the cheapest choice, but a great menu variety, and the food is always delicious. Mostly more so than eating in a restaurant, as most restaurants will not be preparing your meal freshly from scratch as you do with Hello Fresh. The produce and meat they send always seems to be top quality. I find that the preparation times given on the menu cards are a bit optimistic; when it says "Prep: 10 minutes", for me at least it tends to be more like 30 minutes, but I am not the most proficient of cooks.
I have four free boxes on my account to give away to anyone who would like to try a new subscription. If anyone wants one, send me a PM with your email address and I will send the first four people to reply a free box invite. To get the free box you will need to create an account with Hello Fresh and enter credit card info (which would be used for future boxes if you continue the subscription), but you can easily close the account after getting the free box if you decide not to continue.