Well, i'm constantly ordering a lot of stencils: multilevel, laser cut, Mylar Kapton, stainless steel, and so on.
So, i've tried a lot of Stencils manufacturers including OSH.
And i have to say that the best one i've tried is PCB Unlimited: i was struggling to find a manufacturer for a project needing 11 different stencils, three of them multilevel, some framed, some frameless, i really dont remeber the details, it was like two years ago! But what i remember is that PCB Unlimited was the only one able to help me.
I really reccomend them, low prices, great prodcts variety, moneyback guarantee, online quote and discounts. And even though since then i've used other manufacturers, the differences on the service quality makes me go back to PCB Unlimited.
They also give you a 30% off laser cut stencils with your pcbs