So much potential for its value. Don't let the price tag scare you.
Designing patches couldn't be much more easier than this. Just select the module you want, and drag cables to connect input to output. Layout is so straightforward. Everything you need to know about the synth is written nicely and precisely within the PDF manual. I'm using at least 4 instances of Fathom for layering in each of my production because of its versatility.
Also, the developer is an awesome person, kind and attentive to questions. You will not regret picking this up.
If you still have doubts, try out the fully functioning freeware version (mono).
I have been using Fathom for only a few months now. I started on version 1.0.7. At this point it is up to 1.0.11. It has a bucket load of features but a few that really grab me are the extremely powerfull envelopes and the built in delay. You can not only draw your envelopes but can double, triple............ and so on giving you a sequencer type feel. The delay is a three headed monster giving you COMPLETE control over left, right and center. This synth is capable of just about everything out there with alot of stuff we havent seen. I can see this being used alot for evolving soundscapes and one finger rhythmic dances. At this point it has a firm direction, is stable and a pleasure to program. Looking forward to the finer details.