I know this is an old tread but thought I would post my experience for others to see.
I have had the iEXOS-100 PMC-Eight for a few months now and I have to say that I love it. The setup is fast and simple enough for an EQ mount and I love the grips on the RA and DEC axis. I run the ExploreStars software from my laptop and it connects via WiFi without any issues. (The app is for tablets and computers only, it would be 100% perfect if they made the app work on mobile phones. Other apps manage it very well especially the SkyWatcher Synscan app so I cant see why they wont make a mobile app for ExploreStars. They say that you can pipe 3rd party mobile apps through but i would prefer to only use the one app. This is the only let down for me but it is a very big let down) apart from that I cannot fault the accuracy or workings of the mount or the windows version of ExploreStars. I solely do astrophotography (I don't even own any eyepieces), and this mount has worked very well with my Altair Starwave 70ED on it along with my Canon 1000D. I also have my guide scope and ZWO guide camera plonked on top of the scope. The mount with its two 1kg weights holds all this sufficiently for my astrophotography.
I recently acquired a Bresser Messier 102 achromatic frac with a focal length of 1000mm and is quite a beast. I got it for planetary imaging and I gave it a go on the iEXOS at the weekend. I didn't hold out much hope, but I was very pleasantly surprised. I had to use both counterweights and an additional 2kg weight but it held an absolute treat. I thought I would be pushing it too far but it aligned and tracked flawlessly. The 3 pictures I have uploaded were all taken using this mount and the Bresser 102/1000. The first two are obviously Jupiter and Saturn both 2 minute (unguided) videos and the third is the Fireworks Galaxy, this one was 20 x 3 minute exposures (guided) and as you can see, the tracking was spot on and the mount worked perfectly with what I will say was a, well over the limit payload for AP.
I have a website that I run for beginners and more seasoned astrophotographers and i put all my pictures on there so if anyone would like to see what I have taken with this setup and how good it performs then follow the link below to the iEXOS review that I wrote that gives a bit more details than I have written here.
https://paulsastrophotography.co.uk/iexos-review.htm