So, we're six months now from the big date and obviously excited

We both work long and unusual hours so we spent a fair amount of our budget on a Wedding Planner assuming she would take the load off but it doesn't really feel like that, at least not yet.
For example, for catering, in stead of a sit down meal we want food trucks and initially she did give us some referrals in the vein of what we suggested but once she got the initial quotes, she's left it up to us to chase her and them, she hasn't attempted to negotiate with any of the ones we liked who were priced too high, or found alternatives and when we ask her to chase thing will just send us new trucks serving kinds of food we've already told her several times we don't want.
She also suggested that the one place we didn't skimp was on invites when we'd already told her we were only sending them out to appease the mother (we wanted to do an online invite) and got us a quote that amounted to $10 PER INVITE...now, I'm new to this but doesn't that seem excessive? Makes me wonder if she's gettiing a kickback from the vendor.
She put together what was supposed to be a Wedding concept for us but it's basically just cut and paste pictures off the internet of color schemes and things we've already told her we like with next to no creative input
I understand that with some details may just slip her mind and to be fair to her she's a total sweetheart! Gets straight back to emails, listens and tries to take everything on board and her references all seemed good.
I don't really know, this being my first (and only!) attempt at getting married so I was hoping members here could tell me about your experiences with planners and what's reasonable. I particularly miss her paying attention to the details, what we tell her, offering some kind of creative input and being pro active...at the moment it feels like if we don't watch everythign closely it won't get done but I understand that could just be us being an over eager couple
She hasn't prepared a budget...she has given us a timeline to work to which seems reasonable and she has followed up our lighting people and contacts we've given her so far but at the moment I don't feel like she's earning her money.
Opinions?