This is based on my experiences over the last three years and I'm wondering if other guys have noticed the same thing.
When I have booked through an agency to see one of their girls I have always had very good experiences but the dates themselves have always been deliberately slow moving and tentative.  A couple of times the girl I was with  (different girls, same agency) I tried to initiate things and get things moving at a quicker pace and I was told "slow down...we'll get there eventually"  Are agency girls instructed to control the pace of the date?

You just can't make a blanket assertion that "all" providers, whether indy or agency, act a certain way.

My sample size of one agency girl, who couldn't speak much English, is that we didn't spend a long time conversing.  :-

but only because a couple of the big ones in my area shut down or were busted.  I never noticed much of a difference at all in the service.
To me, the only reason to prefer an indy over an agency is the latter is more likely to be targeted by LE.

I try not to suggest that ANYTHING about another member is "too small."

I see agency girls.. I see independent girls.. I see girls that used to be agency and are now independent...
My take is minimal.. They are all great &  most are fine.. but the agency gives no background as far as I can tell to the girl I am seeing.. and the independent typically will involve usually some emails before the date so there us a sense about who she is seeing and who I am seeing,, I like that.. I spend time & effort on being a nice respectful guy.. I asked an agency girl what they told her about me before I got there.. She said "nothing.. Just what time you would be here"... That was sort of a bummer honestly..

agency girls. Fool me once shame on you, fool me twice shame on me.   I will not trust an agency again.  
I will only see indies with reviews on TER , or members of P411.

Based on a couple of bad experiences you throw every agency and every agency girl under the bus. So if you get burned by an indy girl, will you stop seeing all indies?

And some amazing experiences with indies. Also some not so good times with both. I agree with GaG that your sample size is too small to make those generalizations.

That was almost exactly what I was going to say.

I had great time with my indie provider who is my ATF, we do quick, or slow, we have great conversation.  

In eight years in the hobby, I have seen about 50 indies, but over 300 agency girls (mostly Kgirls, but a few Viet's and Thai's).  I think the mere fact that I an seeing at least 6 times as many Asiancy girls speaks to the fact that I enjoy them much more, but I agree with Perfectstorm, there are clunkers on both sides.  

One of the virtues of the hobby, seems to me, is that while act of providing is very anti-feminist, the fact of women making their decision to use their body, to take advantage of men, put themselves in the position of power, is actually a feminist victory of tremendous sorts.  

MOST (not all) of the agency girls have been upfront and your date lasts only as long as you do.  Once and done.....neXT!

Using one of the best "Agency Towns" in the country, Atlanta as an example. I would say 80% or more of their agencies are female run and owned.