Well yes and no.
See I am not a fan of Camden in general so I only feel safe going on a Sunday. It's crowded. But managable if you go early. In the summer I am guessing it's just as crowded during the week. It's not cheap so I don't know how crowded it still gets.
We were members for a while. And yes the weekdays were MUCH less crowded.
So I guess if you have the choice pick a weekday- but if not you'll be able to handle it on a weekend. We have.