For a membership at lifetime for my husband & I it was quite pricey each month about $110- & then we had to pay an enrollment fee on top of our monthly dues. I became pregnant 2 months later with twins & when I went on bedrest at the hospital, we could only freeze my membership & not my husband's, so I cancelled both since we worked out together most of the time. Since then, they have sent us many offers via email & by machine to rejoin & they would waive the membership fee if we rejoined. I know Lifetime offers free daycare while you work out, but I think for your 4 year old to have lessons there is a fee for the class. It's a clean facility in Naperville, & the pool is nice (indoor & outdoor). They have nice perks too like a party room you can rent if you are a member, rock climbing, & fitness class (for small fees)