What do you like best?
The best thing I like in gnome terminal is its simplicity and stability. I'm a developer, and gnome-terminal is enough for compile source codes, navigate through folders and SSH connections.
What do you dislike?
I just think it could be better in user experience. I prefer terminator's user experience, as it allows the user to split the screen into several smaller screens (without need to change tabs). I think gnome-terminal should implement this "split-screen" feature as well. Another great feature that could be implemented is "fish" like autocomplete. Fish shows autocomplete when you are typing, allowing you to just press the right keyboard arrow to autocomplete the command.
Recommendations to others considering the product
If you are a dynamic developer, there could be other better options (fish and terminator). But, if you are a normal user, this is the best option for sure.
What business problems are you solving with the product? What benefits have you realized?
Compile and run source codes (c++, java, python), SSH access and navigate though folders. It is more like a terminal for regular linux users.