Despite a small slot being allocated to the amateur service at a WRC meeting many years ago, this slot is not universally available. As an example, it is not allocated in the UK. Other 5MHz allocations with higher power are available at 5MHz in the UK.
As a dedicated QRP man, and speaking personally, I would trade the bitty allocations for a smaller, contiguous band with lower power. I have only been on the band with WSPR, so am not well qualified to comment!