I find the rate of advancement to be ok. My group was playing weekly, but then real life intruded and we've dropped to every second week for the face-to-face game.
Of course, I've pretty much thrown the experience awards out the window, and award roughly 1/4 the amount needed for the next level after each session. So characters generally gain a level every 2 months (4 sessions).
My concern was that in game, the characters were levelling too fast, so I implemented training time and have put in more downtime between adventures, and things seem to be going smoothly now.
Of course, I've pretty much thrown the experience awards out the window, and award roughly 1/4 the amount needed for the next level after each session. So characters generally gain a level every 2 months (4 sessions).
My concern was that in game, the characters were levelling too fast, so I implemented training time and have put in more downtime between adventures, and things seem to be going smoothly now.