What do you like best?
My favorite thing about Send in Blue is just how easy it has been to use. The reason I originally looking into Send In Blue was the straightforward pricing model that charges you based on emails sent. That makes sense to me, none of this complicated "how many contacts do you have +hidden fees." Once I got set up, it was simple and straightforward to embed an email signup and start managing my contacts. Creating an email is simple, straightforward and easy to use while also being pretty powerful. Most of the tools and information is easy to find, access and use. I originally switched to Send In Blue for my job, and now I am using it exclusively for my personal projects, because its just a no-brainer across the board.
What do you dislike?
My only complaint would be the email creation system. While it is intuitive and powerful, I think they could go further and provide more options and tools to make more complicated emails. That being said, this is FAR from a deal-breaker for me, and is at minimum on par with the other email services I have personally used.
Recommendations to others considering the product:
If you are not sure, at least give it a try. There is a fantastic free trial where you can import all of your contacts and give the system a test drive. Unlike other Email services I have used you do not need to worry about getting charged while having a free account. If fall in love and decide to send more than 300 emails in one day, then you can upgrade and get all the Send In Blue Features. (This was the free trial limit at the time of writing this review, as always go and check the details in case they changed.) I really recommend giving it a try, worst case its not for you.
What problems are you solving with the product? What benefits have you realized?
I think the answer to this question is pretty straightforward. For my own use I wanted to release a game beta I was creating and have people sign up with the ability to contact them regarding updates. While any email service could work in theory, Send In Blue has gone out of their way to help get me set up and lay the basic framework to make it easy and convenient to stay in contact with my new community. It has been really nice to have an email service that I do not feel like I am fighting with, and just simply works.