I live in the area and have probably eaten here more than 40 times. I eat here 3-4 times a month and so does my father and his gf. This place is just down the street from us and when we're hungry, want something close and reliable where we always know we will get a good meal, well Green Mango is our fail-safe staple.
Basically, this place is a great Thai-fusion type of place that I think would appeal to a wide variety of people. The menu is fairly large and I've tried a whole lot of things and have never yet had a dud. I tend to stick with some of the safer dishes but my father and his gf are much more experimental with food than myself, specifically my dad's gf who has travelled Asia, and they always ask for their dishes super spicy and they love it. This restaurant is may not be the most creative/different/authentic Thai place in Toronto but if you are craving Thai/Asian fusion you won't go wrong here, especially in Etobicoke where options like this are limited.
It is always busy here, even on Sundays which is when we most often come for dinner. There is a woman who I believe might be the manager who is also a waitress who is always SO friendly and greets us warmly every time we are there. The waiters are almost all foreign and a few of the younger ones struggle with their English but are super friendly, and that's all that really matters to me in regards to service. The vibe is casual and you don't have to be dressed up to come here.
As a side note, I have tried every single dessert and they are all awesome. The creme brulee is a standout and they have some pretty unique icecream flavours. I know this place will continue to be a staple that my family and I will frequent as long as we live in the area. If you are passing by you won't be dissapointed here.