Pro: + good multipurpose sounds + a lot of features + MIDI controllable + probably the most powerfull free VSTi + unbeatable value-for-money rate
Con: - confusing non-intuitive user interface - ugly design (a matter of taste, others may like it)
I first downloaded this freeware VSTi several month ago and deleted it right afterwards, since I really disliked the user interface and thought this VSTi is total crap.
Now, after recognizing what power RGC has (Square+Pentagon), I gave it a 2nd chance... I still dislike the GUI. It looks ugly to me, and I have problems handling it, e.g. turning round knobs not knowing what the current real value of this knob is. Some kind of value indicator displayed beneath or in a bubble would be really helpfull.
However, this synth has a lot of features producing good multipurpose sounds and is probably the most powerfull free VSTi out there. A mighty underestimated tool hidden beneath a bad interface.
[Note: The successor Triange II is a great improvement with easier handable better looking GUI and even much more features - and it's still free!]
...but Triangle I is a bit of a different animal... I'm glad I have it and I wish rgc:audio wuz still doin' it to the vsti and mini-host world. Does anyone know if they're developing under a new handle??
No. All this series (Triangle, Square, and even Pentagone) is being totally abandoned for years and years.
Like you I have all the versions of all these wonderful synths, and yes they were a bit different in their results from versions to version... But apart very few exceptions I always use the last version of these old excellent synths created by René G. Ceballos (rgcaudio, rgc was the three initials of his name).