With OS X/Audirvana desktop, I tried the free 90 day Tidal/Audirvana promo a few months ago. Couldn't be happier. Now my hundreds of lossless rips are augmented by seemingly endless exploration of thousands of 16/44 albums. Sure, there are some titles missing and some artists' catalogs are a bit short, but there is a wealth of material there.
Sonically, the streamed flac files aren't quite as "alive" as the same titles ripped AIFF and played with Audirvana's minimalist setting, but they are miles beyond lossy files.
Easily worth $20 per month
IMO
YMMV