This is going to be a friendly rant as much as it is ramble/analysis of the mission to find Liara T'Soni. First, there's not giving you the exact location, forcing you to search the first time (or cheat.) That's fine; there are a couple other interesting quests to pick up in the Artemus Tau Cluster.
But then you do land on Liara's world, and something's missing. Every other core mission, you first land, talk to some folks to get a feel for the place and maybe pick up some side missions, then get in the Mako (Virmire does mix it up and do the Mako first, but it has all the main elements still.)
This mission, though? Straight to the Mako. What happened? Checking around, it looks like exposition people and all that were planned initially, but it seems strange that of all things in this game this was the bit that was cut. But what's even stranger is the lack of explanation. Where are the people on this planet?
I think maybe lore later tries to cover by mentioning robotic mining, but that doesn't explain the clearly for-people mine entrances and lack of anything that looks like remote mining equipment. And even if there's no miners, why is Liara completely alone? Surely she wasn't the only one on this expedition? The only one interested in this ruin?
Would it have been so hard to have a line about her killed team members, or how they fled and left her to the geth? It would make so much more sense. Of course, while I'm wishing, it would have been cool to fight mine equipment the geth had taken over, but clearly for some reason time ran out for a lot of things on this quest.
But the ruins look nice, and on the plus side the mission doesn't take too long. And it's a really nice touch that the longer you take to get to Liara in-game the more delirious she is when you get there.