Congrats! You have inspired me to take lessons ,just a quick question , did you do any drills for footwork too? or any cardio exercises. I sometimes wonder I am a step behind better players and also get tired after a long point, so besides working on the technique,I need to work on my stamina and footwork too.
IMO drills are good to get some shots in and maybe meet some people you might later play rec or league with. Basically little to no individual teaching in a drill class. I've never done a cardio class, but the name implies more aerobic than teaching, right?
The thing I like about 1 on 1 lessons is the subtle things a good coach identifies, and the visuals he offers to help you envision what you should be doing.
Friday I had a lesson, specific to working on my 1HBH return of serve from the AD side hitting crosscourt in doubles (solid crosscourt returns away from the front opponent who might poach). Like I said, pretty specific. As some imply, it wasn't just some stiff endlessly feeding balls telling me "good shot", or "keep your head down". We also worked a little bit on high volleys (not high enough for an overhead). In both instances he identified technique things I need to work on, and gave me visuals to keep in mind.
For example on the return of serve to my backhand, I often made contact with my right foot not planted yet. I attack the serve on an angle (good), but I was losing power and control because of footwork. So I worked on making sure my footwork was quicker to my spot to get my foot planted earlier (which after 20 minutes became quite exhausting!). Then later, to stay down on the ball longer he said to envision I am standing in a small tunnel and that if I stand up tall I will hit my head. Simple, but effective.
Now for me, both concepts I understood and were helpful. Other instructors might just be simple ball feeders, and I've occasionally had instructors who were not good at picking up small technique flaws or were not good at explaining things in a way that I could connect to. So, buyer beware. If one pro doesn't jive with you... it doesn't mean they are all bad. Find one who you can work with. And in any case, over time, things I have been taught in a lesson were things I probably would not be able to diagnose and correct on my own, or in a drill class. My 2 cents worth.