I am currently painting my summer house with Cuprinol Woodshades (Black Ash) and have recently painted my mower shed with it (Seasoned OAK).
The summer house was treated cedar timber but the mower shed is brick faced with softwood. It has been easy to use but, for me, it has been a 3 coat job each time. Not too bad as you can re-apply after an hour/hour and a half. Like all painting jobs, good prep is king!
Hope that helps Ben.