That is a really rough situation you are in and I sympathize with you. Bottom line is, I think we will always think that no one will take care of your baby like we can. But, as long as your baby is healthy and happy and doesn't seem to mind going to daycare, then you know her needs are met.
In regards to them paying attention to her when she's alert, I would be concerned too. Babies need stimulation and they are constantly learning. I would try and in-home daycare provider where the ratio is usually smaller. Wish I had some better suggestions!!!
I think I may be a little biased being a first-time mother and I would MUCH rather stay home and take care of my daughter but I know she's being taken care of.