Months ago the manufacturer received this review, privately. They declined to respond.
1. The tech (software, processor, display) age of the PM5 device is around the late 90's, but priced AS IF it had a crisp color display, a decent speed/capacity processor, and a well thought out interface design fronting feature-rich software. The hardware of a current iPad would fit inside a PM5, yet it's less useful than my circa 1980, Seiko LCD watch.
2. To put in generously, the software/USB interaction is unstable. For all practical purposes the PM5 nothing more than a 'dumb' terminal due to its unreliable USB (testing VARIOUS recommended USB's) interaction.
The contrast in engineering priorities between the PM5 and the rower is striking. The rower's high value can not be accidental, therefor neither can be the poor state of the PM5.
I purchased this based on reviews and now wonder if I made a wise decision. It arrived today and I assembled it and worked out 20 minutes. It's a sturdy device and I'm not unhappy about the workout, that much. I wished I had done a little more research. It has resistance levels but the manual controls are placed so that one has to literally get up, adjust and go back to the workout. It's more low-tech than I had expected and again I should have done more research. Another point is that the maximum resistance I didn't find all that challenging, probably because I do weight training and can handle a moderate amount of weight doing seated rows. Anyway I will be using it and I'm not unhappy with my purchase.
(*note: although I own the Model D, I feel qualified to leave this review because the hardware & software and services I'm commenting on are used by both models. Please see my review of the Model D version of this machine.) I want to leave a note here for those considering this machine: the PM5 and the associated software for (ErgData), does not allow you to share any of your workout data with other apps, nor with Apple's HealthKit (or the Android equivalent). The data moves in one direction, from the app to the Concept2 website. So, if you, like ***millions*** of others, use a health tracking app or have a wearable fitness device or use HealthKit or want to connect the workout data from your rower to *anything else* on the planet, you are out of luck. As for build and quality, Concept2 is my favorite workout machine ever. The Concept2 brand should be familiar to anyone who has ever stepped into a gym. They are durable and the customer service is second to none. But if you're purchasing something this expensive you should demand software and connectivity on par with that luxury. (oh, and also, the online web portal and logbook is a throwback to the late 90's and hasn't seen an update in years. It only allows the upload of last season's data from your log card, even if you have a lifetime meters and workouts reaching back three years... which is odd... the card can hold the data, why can't it be uploaded? aaaaaaand, it is difficult to connect to the portal in general. So, there's that.)