Heres why Mass Effect Legendary Edition launched to mixed Steam reviews

Mass Effect Legendary Edition released on Steam on Friday, and the reception was lukewarm: For most of the day, the remastered RPG trilogy had a "mixed" user rating on Steam. (Just after this article was published, the Steam rating changed to "mostly positive," and on Saturday, it has become "very positive.") Don't resign yourself to disappointment because of that, though. Many of the negative reviews cite technical complaints that won't necessarily apply to you, and there are some enthusiastic thumbs-ups in there, too. 

For $60, Mass Effect Legendary Edition is a 100GB package which contains remastered versions of Mass Effect 1, 2, and 3 (minus the multiplayer), and all the DLC (except Pinnacle Station). Being the oldest, Mass Effect 1 has gotten the most attention. Along with the graphical remaster, the combat has been modified to feel more like it does in Mass Effect 2 and 3, and some may be disappointed that the original's cantankerous RPG systems have been relaxed. For example, you now have an accurate crosshair rather than a circle that loosely suggests where your bullets will go.

Granular design criticism is not the focus of the current Steam reviews, though. Here's a paraphrasing of the primary complaints I've found in the negative user reviews so far, and what I've experienced playing the ME1 remaster myself.

"The Steam version launches Origin in the background, which is annoying, and may require troubleshooting."

This is true, and it did cause a brief problem for me: On first launch, a prompt complained that I couldn't run EA Desktop and Origin at the same time. I'd forgotten all about installing the EA Desktop beta and had to find and kill the process in Task Manager. Once I did, it launched fine and Origin is not too intrusive: It automatically pops up when the game is launched and then hides in the taskbar. (If you have other EA games on Steam, you'll be used to this annoying little process. And obviously this is a non-issue if you bought Mass Effect Legendary Edition directly through Origin instead of on Steam, but that does make you slightly weird.)

"The mouse control in Mass Effect 1 feels wonky, as if mouse acceleration is on."

Shepard's turning radius takes some getting used to (if you're new to the Gears of War era of third-person shooters, welcome), and finding the right mouse sensitivity is tricky. The camera does seem to spin at an uneven rate at times, but I can't tell if it's just my perception. As far as I can tell, the mouse control is just like it was in the original, although perhaps the remaster didn't need to replicate that aspect of the old PC port.
I haven't tested this, but I think we can safely take the word of ultrawide owners, the PC's most vocal special interest group. I used to have an ultrawide, too, so I get it. It's annoying going from full screen to black-barred cutscenes. It's not too surprising that these 15-year-old cutscenes weren't recreated in a wider aspect ratio, though.