I've had this for about 3 years. It grew well until last year when the leaf tips dried up. I think it may be because of too much fertilizer. Despite this, it still flowered. Not as spectacular as the vendor led me to believe and it is not fragrant. The flowers last for about 4-5 hours.
I know this is an old post but I have a Sobralia that I think might be S. warscewiczii and this flower doesn't look like the pictures I've found online. Just thought I'd mention it in case anyone was using this photo as a reference.
Here's a link to a post with a picture of mine. Sobralia cf. warscewiczii