I rate it 7.5 out of 10.
Things i like:
The Legendary Edition gives you all three games and all their DLCs, which is great.
I liked the story, with an extremely captivating atmosphere and very important choices that matter in the next games as well. The game has many fun challenges.You can interact with all species. I recommend for each game to go through all the side quests to have a good relationship with all the alien species that will help you with the fight against the Reapers and thus a perfect ending in the last game. The game will make you think about how each decision leads to some consequences, good or bad, the choice is yours. Be careful and enjoy a wonderful trilogy.

Things i don't like:
The gameplay is nothing special. Perhaps the game is tailored to be played with a joystick rather than a keyboard and mouse. There are some bugs where you get stuck on a wall and have to reload the save. The Legendary Edition gives you all three games and all their DLCs, which is great.

Mass Effect 1: I didn't like traveling around the planets, I found it a bit boring. I think this is the game with the most bugs and auto-save doesn't save very often.
Mass Effect 2: My planet scan would have happened one idea faster.
Mass Effect 3: I didn't like the menu where the missions are because the main missions and the side missions are on the same page. Priority is indeed written on the main mission. But it didn't look right to me.
When you go to the Citadel- Docks: Holding Area, it is not optimized very well. The FPS drop to 40.

The Price for that game is a bit high for me (yes there are 3 remastered games with all DLCs), but if you manage to get it on sale for 15 euro it will be more than perfect.
And I think this is what I had to write as a review,
Enjoy.