While I am satisfied with the appearance of my lawn (spring and fall fertilizer with weed maintenance in between), they try to up sell quite often. I initially only wanted fall and spring fertilizer, but they insisted on weed control too. I have in because we have a new lawn, so I plan to do it for one summer then drop the weed control.
Since, they've "offered" multiple more services - and especially pushed aeration. Our lawn looks fantastic and I did not opt for any additional services.