Ganttic vs Resource Guru: Which is best for you?

Ganttic is a sophisticated tool which allows me to automate the entire process of PPM.

I don't like that on the first day of each mew month I am unable to feel the following month's data until Midday.

In my experience, it is a flexible, versatile time management tool providing a quick visual reference of everyones' location and task, drill deeper for contact info, client details, equipment etc.

It just gets to a point where if the business grows too much, it feels like Resource Guru isn't able to handle it as well as some of the competitors.