I bought a box of Monarch ammo for each of my pistols to use at the range in my .40 caliber Glock, and in my .380 KelTec, and it has proven the most accurate and dependable "CHEAP" ammo I've used and I will continue to buy more when I can get it.
I've heard some folks say it's junk, but I'll tell you what, it sure works for me.
I only use premium ammo for concealed carry, but for the range, it shoots clean, and I don't have a problem using it in my weapons.