The display is either worse than the 1.0 and as illustrated in the figure. The contrast is lower and the figures are quite "thin". Moreover, I find it confusing.
Heart rate monitor I do not need, for I have my Garmin-clock.
Fastening with cable ties I find completely okay, because that's very stable and I can therefore mount it on any handlebar easily. The holder of the speedometer snaps with relatively little resistance. I do not hope that it suffer the same fate as my old.
Furthermore, the much bulkier 2.0 and the transmitter on the fork is completely unaerodynamisch. If you are on his triathlon bike on every little thing eight, to reduce wind resistance, I will certainly not fit me there a bulky part. For my triathlon I will therefore grow me a CM 4.1, which costs 20 EUR less than the VDO set for second bike and I need here only distance and speed!
Otherwise everything works okay.