What Bp said is what I understand as well. In fact I had been thinking if I had the Kickr what direction would I go because the trainer has so much flexibility to it with having both ANT+ and Bluetooth transmitters.
Since I use WKO+ to track my training I think I would use the Garmin Edge to record the training and use either my iphone or buy an ipad to control the resistance. With my eyes being bad the last couple of years I think I would rather get a larger screen. Probably at first I will just use my iphone 5s to control it. Why did I mention the 5s? Because the Kickr works with Bluetooth 4.0. For iphones this goes from 4s and newer. So be careful if you were to shop around for something used to use as a controller.
Today I am supposed to be getting a Suunto Movestick USB ANT+ adapter shipped today that I can potentially use a PC with a large monitor that sits just a few feet from the bike. That monitor is large enough for me to see clearly so I can use something like Perfpro or TR to control the unit, but I would have to get off the bike and I can see that getting old quickly. I could get a stand and set my laptop in arms reach as another option. Another note, and I am not sure if this is correct, but I have read that some people using Android/Bluetooth with the Kickr are having some issues so check up on that if you have that option.
In the same package that I am supposed to get today is a Wahoo ANT+ adapter for my phone and I also had to get a 30 pin to lighting adapter so that I could plug it into the phone. I wanted to get this to communicate with my Quarq using Qalvin app to check slope, but this will also allow me to use either Bluetooth or ANT+. Why would I mention this? Because it is possible to buy a used older iphone for a whole lot less and not have a contract with the phone company, plug in the ANT+ adapter and use ANT+ to communicate or control the Kickr.
That is the cool thing with so much flexibility having both ANT+ and Bluetooth.
I also think we have just begun to see the amount of apps and applications that can be used with this trainer.
Unfortunately for me, in some ways, is that I have eMotion rollers that were expensive. My wife would be beyond ****** if I got another trainer at this time. Especially since my KK fluid trainer has become a glorified bike stand sitting next to the rollers.
I do love the rollers though and feel like I am getting things done, but I have a feeling I could refine my efforts a bit. I find that I have to hold toward the top of L4 for an interval because I cannot seem to hold W as close as I could being locked into a trainer. Having to focus a little on balance and the carriage moving a little my output varies more. Mainly I think it is just my inability to hold a good a steady cadence, but I wanted to blame it on something else.