I suppose I'm still in the early stages of starting out... this also comes as a nice opportunity for an introduction as this is my first day posting here!
I've done location recording for 2.5 years, mainly at the local university's music school. Nearly all of my work is classical in nature, but now and then I'll have a few jazz gigs and the occassional band. Business definitely started off slow, but has been steadily growing. I don't advertise; everything is word of mouth. As I'm still a student (classical piano performance major), also working 2 other jobs, I don't have a ton of time to devote to audio work. That being said, I am quite happy with the amount of work I get in and am almost to the point of being consistently booked.
My first session was done straight into PTLE. A friend of mine needed a classical piano recording. Needless to say, the recording didn't sound all that great. There were plenty of hiccups during the session too. I brought on an Alesis Masterlink and did live mixdowns to stereo for awhile. That was a bit too nerveracking, so I now use an HD24 when I need more than just a pair of mikes.
PTLE is still my daw, although with quite a few new plugs.
I must be doing something right or people wouldn't keep hiring me. I've also done collaborative work with one of the biggest studios in the area. No... not just assisting, but actually running sessions alongside the other engineer. Plus, recently been hired by the classical radio station in town to engineer some of their on location gigs.
If things keep going the way they have, I'll be a pretty happy camper after another 2.5 years
Would I say I'm pro? Ya, I think so, and my clients think so. My gear list is pretty conservative, but that doesn't mean I can't make great sounding recordings. Everything I know has been self-taught through experience (I've been making recordings myself for a good 4 or 5 years prior to starting the studio here). And it definitely says something when I've only been in business for a short time, haven't advertised, and have still done professional recordings for national release and broadcast.
8 years to be called pro? Eh, I think results can stand for themselves. If you make make pro sounding recordings after 1 year... you're a pro.
As far as what to charge? Every area is a different market. I started off and still charge less than half of what the other engineers in the area charge. I've gotten business because people have seen I can do the job well and they don't have to spend as much. But every situation and location is different. There isn't one rule as to how to do it.