I joined a few months after DS was born because it was right down the street and my MOL lived in my bldg and could watch baby for me to run up there, but since then many changes, so I rarely get up there unfortunately. We moved and my work relocated so I have a longer commute now. Their hours aren't super convenient to me now, but that probably varies with each individual location. If you think you can work out a schedule and stick with it, then go for it, I have friends that love it, but our location doesn't really have weekend hours which is when my DH is around to watch DS and I can have some alone time, so not extacly working for me.
Sorry to not have a ton of feedback for you, but my suggestion would be to examine the hours to see if it works for you. If not, then not worth the $.
Jen