My experience form having my basement sump:
Still need to run an ethernet cable form the basement up to the living room for my Apex. I could never get the wireless adapter to work.
Being so close to a utility sink is SO great. But I DO wish I had a countertop to place things while working on it. I currently use the washing machine (don't tell the fiancee!).
We are pretty good in the noise department, but in the wee hours of the morning, when going to work, I can hear the bumbling of my drain lines into the sump through the central air vents. The bubbling is due to a few things that I overlooked plumbing-wise, but had I fixed that, the tank would be 90% silent; save for the slight trickle of my overflow and non-siphon drain lines.
I do wish I would've accounted for having space for QT tanks and frag tanks.
I ended up ditching my 10g tank ATO reservoir for a large Brute trash can that I intended using for water changes. Its nice filling it once every 2 months and completely forgetting about it.