I have written article about SiteMinder (ASX:SDR) for A Rich Life and you can read it by clicking link below (it is free):
https://arichlife.com.au/an-introduction-to-siteminder-asx-sdr/
SiteMinder is operating in competitive industry and for it Channel manager there is a comparision article on their website that list five major players for futher research if you are interested - https://www.siteminder.com/r/comparison/hotel-channel-manager/
Happy Friday ( if you read it on Friday that is).