Freddie your opinion on glock

I was looking to buy a pistol which i already had a 45cal, but i didnt like it so i sold it mostly, because i needed money to move. I was looking into the glock 20 10mm handgun for conceal carry. I was wondering if you ever shot the 10mm if so what is your opinion on it. Also, what is your opinion on other calibers pistols in the glock like the 40sw, 9mm.