Haven't received any messages from the creator of MiniBin so I'm not worried about it. There's plenty of room for more than one program that does similar things. To answer your question, TrayBin does display the total amount of files in the recycle bin and file size of the recycle bin but at this time doesn't offer an auto-clean feature. It won't be hard to add that as an option and if I have time I'll add that in.
Thanks for the suggestion and hope you enjoy using the program.