First time watch for me. Didn't know anything about it when I found the original poster for sale online. Not only was I surprised that I hadn't seen Schroeder's first film but I thought I've seen almost every drug themed film out there. Pleasantly surprised to find the film streaming on Criterion Channel. The transfer must be the same as the BFI Blu-ray which I hear is fantastic. Here's a nice write-up on the film by Nathaniel Thompson at Mondo Digital:

Néstor Almendros shot it so it looks great.

Watched on the Criterion Channel.