TACX i-Flow vs i-Vortex - help pls

I'm just about driving myself nuts trying to compare these and the TACX website doesn't exactly swamp you with detail. Can someone please describe / confirm the difference(s)
As far as I can see the i-Flow has this front wheel frame which seems to make it steerable whereas the i-Vortex doesn't - is that correct ? I presume that means the Vortex doesn't have steering so how does this work with the VR ?
What about the VR - any difference between the two ? The only difference I understand is the i-Flow comes with the basic and the i-Vortex comes with the advanced
The -Flow seems to be around £450 and the i-Vortex around £500
So is it basically is it a choice between steering or the advanced sorftware (and of course the software seems to be upgradeable for about £160 which raises a further question - is it worth having the advanced ?)
Sorry for all the questions but would appreciate some guidance from someone who knows what they are on about before a migraine kicks in
Finally, although I would use my winter road bike on it, I presume a mtb could be used (my wife has some designs on using it too)
Thanks in advance
As far as I can see the i-Flow has this front wheel frame which seems to make it steerable whereas the i-Vortex doesn't - is that correct ? I presume that means the Vortex doesn't have steering so how does this work with the VR ?
What about the VR - any difference between the two ? The only difference I understand is the i-Flow comes with the basic and the i-Vortex comes with the advanced
The -Flow seems to be around £450 and the i-Vortex around £500
So is it basically is it a choice between steering or the advanced sorftware (and of course the software seems to be upgradeable for about £160 which raises a further question - is it worth having the advanced ?)
Sorry for all the questions but would appreciate some guidance from someone who knows what they are on about before a migraine kicks in
Finally, although I would use my winter road bike on it, I presume a mtb could be used (my wife has some designs on using it too)
Thanks in advance
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Posts
I have ridden standard turbo which is mind boggling boring. In comparison the i flow with vr is great. I end up doing 2 hour sessions compared to my previous 20 mins on 'normal' turbo. I can't comment on vortex but would strongly recommend I flow. I got mine pretty reasonable from fudge cycles and delivery was super quick.
Hope that helps
Matt
If you haven't got a steering frame, then it just autosteers for you.