The best part of using synched is that I can see my data in different platforms without having all these tools separately installed within each platform itself! It's very simple for managing your rewards points as well which helps me save some time while maintaining consistency with every one else who uses this software - it works seamlessly between apps & websites so there are no complications when transferring from website or app-to another (and vice versa).
There isn't anything wrong about their services but if you're looking forward towards an online store then do give them consideration since they have quite good customer support team too :) We use our own affiliate link management tool called "Rewards Engine" where we manage most things like tracking codes/URLs etc manually through Excel sheets by ourselves before uploading into any other service provider such us Rewardify / Sync'd via API integrations.