Welp most gymns are dingy(except mine,its in my house,the wife gives me crap if it isnt clean )the most important thing is how you feel the training fits you
Ill explain
In the last month Feur has gotten some training time in at 3 seperate gymns
FIST(my gymn)-I concentrate heavily on footwork,having my fighters fight out of a modified cat stance(memo to self,I owe Chris some Pics),emphazise a stinging jab,and being able to throw all punches from all positions(Im a real joy to work the mitts with)
Superior(Welch)-They more or less follow Haislets book to the letter(she mainly goes there for sparring)
Joe Fraziers(Philly)-They stress an open stance,so a fighter has better balance as they bob in to range,to set up rising uppercuts and crosses

Now for a tall fighter like Feur,or myself,the first style is probably best as it takes advantage of reach and size,but for a shorter fighter,Fraziers is probably best,as it gives you a way to get in on,well, a bigger fighter
So go a couple of times,and see if what theyre teaching fits you,now mind,you should be able to modify for what you have in front of you,but trust me,I fall in to this to,Trainers can be very,"My way or the highway"