Spur Acurol N feedback

Browsing through Fotoimpex have found Spur Acurol N developer. Never used it.

Are there any good comparisons especially to Rodinal? Including shelf life of open bottle?

Never compared it to Rodinal, but I have compared it to Beutler with EFKE 25; sharpness it pretty much the same, but the Beutler reveals more grain. FWIW, it's my exclusive developer of choice for EFKE25. Never used it with any other film. It doesn't have the shelf life of, say, HC-110 (old formula) or Rodinal, but I have a bottle that's about 3 years old still going strong.