Well, Subway's subs are Subway's quality, you know what you going to get, nothing can go wrong there. But the service at this location is even below the subpar Subway quality that you'd expect at a Subway lol, look at other reviews.
I totally understand being an employee at a big fast food chain sucks (limited pay, no benefit, horrible hours, etc.), no judgment there, I am actually blaming the operator/owner more than anyone. Train your employee, give them livable wages, improve working condition, be a human.
I'd rather go to a different sandwich shop, there's many to choose, try a local one maybe, prices around this part of Colorado are the same, but you'd probably get a better quality sandwich and service going to local shop, or even Which Wich.