Ratio, freedom+ or OSTC+

[HeXx]

So I own a Ratio iX3m round button version.
I might be about to sell it and I haven't decided if I will upgrade to the iX3M2, freedom+ or OSTC+.
One thing that I really liked was the ability to see the source code of OSTC computers but that seems to have stopped on OSTC2 and source code is no longer public.
Any one with experience on either of those computers could give some feedback?

Cheers

 

[GDHLEWIS]

Been using the iX3M 2 for a year now and very very happy with it so far. Used it on deco dives and everything between. Did have issues at the very beginning with transmitter pairing but that seems to have gone with an update. I have not use the other computers you mentioned so cannot comment on them.
I have the GPS version and wished I had saved the money as just do not use it at all. Just drains the battery and takes ages to lock on to the signal. Transmitters are very expensive for some reason but they work a treat.