From what I can tell, most of us have a wait-and-see attitude. Everyone was so tired of the Weber years, constant fanbase infighting, inconsistent results from championships to pitiful, his on-court presence or lack thereof; welp, Tang is a refreshing change.
The youngsters he's recruited to this point seem to be solid based on who else was recruiting them, which is my personal judgment point, rather than stars which often turn into flares after the fact.
For example, this Tomlin youngster - the latest recruit - had offers from TxT, Pitt, Miss State, and others. So, that suggests he's pretty good as are the others Tang is bringing to MHK.
So, I'd say the reaction so far is positive albeit guarded. We'll have to see how he finishes this class and then does he coach them up next fall.