To be honest, these were the first bikes we had tried. The dealer we used was over 50 miles away, and the next closest are about 60 miles and then 100+, so trialling a lot of bikes was going to take a lot of time and fuel. The penalty for living in a rural area! We both tried the Motus and loved it, but the dealer only had one in stock, with a gents model due in October. I wasn't prepared to wait that long, but if he had had a gents and low-step Motus in the shop on that day we would have blown our budget and bought both. However, I tried a couple of others (the Volt Pulse being the other one I had my eye on from my research) and the Wisper seemed the most comfortable and robust (I am over 100 kg). In the metal, the Pulse looked a bit flimsy and nowhere near as good as on the Volt website. So we got the 905 Classic for me and the Motus LS for my wife.
So I haven't followed the group wisdom of 'try as many as you can', but I'm pretty happy that we have got something suitable - and, more to the point, we have them in the garage right now, and not on order for several months down the line. Time will tell if we have made the right decisions, but I am happy with what we have done so far. The Motus, especially, is a superb bit of kit and the build quality fully justifies the £2k price.
The only downside so far has been a big question over the standard of preparation of the Wisper, as the bike would seem not have had a proper PDI before we bought it. But I have contacted the seller, and I won't say anything here until I have had a response from him. He spent a lot of time helping us choose, and making adjustments to suit my wife's medical issues, so I don't want to be unfair to him.