I save a ton of money on dry cleaning... not only because I go to Seville, but because I work in a more casual environment than I did five years ago and hence have less business attire that needs to be dry cleaned each week. But regardless of how often I have dry cleaning or how big my "pile" gets, I can count on Seville being consistent!
They are quick (same day service if you drop off before 9am), reliable (they've never lost an item of mine), friendly, and don't seem to mind too much when I misplace my ticket. (They do make you sign for it when you do so though). Their prices have gone up a bit through the years -- they are now charging $2.50 per item -- but this is still much cheaper than some of the other dry cleaners in town.
One thing to note is that you prepay for everything when you drop it off. I'm not a huge fan of this always on my way in, but it makes pick-ups quicker on the way out.
The folks at Seville say that they "will take care of your clothes and save you money," and in my opinion they deliver on both counts. Thanks Seville!