While it may not be a scam in your opinion, it could be considered spam. Spam is not appreciated by the community and could be flagged or may result in action from the cheetah bot..
Some things that can be considered spam:
- Banner ads of any kind
- Referral links/codes
- Repeating the same post
- Links to known scams, phishing sites, and other dangerous links
Equally, just because something has referral links in it, that does not make it spam. I sincerely disagree with your tagging of this post. As the first paragraph states, there will be referral links, but they follow a genuine write-up on the services.
Upvoting your own post... @steemcleaners seem incredibly efficient at generating income for themselves.