You really get what you pay for!
I knew that having an 1:1 instructor would help me learn Mandarin, but I am truly surprised at how well it's working out. I think the biggest takeway is the daily practice makes a huge difference. Even if I have a busy day and can only do 10-15 minutes, it makes such a difference. The best practice for me is watching the recaps of my meetings with my instructor - this is super helpful.