I’d thread carefully when reading commentary from other sites. Technically I find the M4 quite capable for my motorised setup and there are bi weekly official firmware upgrades from Technomate being released at the moment. I hardly call that a lack of support.
I bought the M4 in order to get a reliable unit to drive my dish across the full East/West arc which it does very efficiently. The tuner is sensitive enough to pick up any of the KU broadcasts I require throughout the arc.
I have absolutely no interest in so called “extras” that seem to be the driving force behind much of the negative commentary on the M4 from these other sources. In fact it appears to be a particular cohort using the same user name registered on multiple sites and trotting out the same negative views because a particular “feature” was removed from the M4. If this “feature” was my main purpose for purchasing a satellite receiver I wouldn’t bother and I’d go the IPTV route.
Maybe you could ask if the M4 is technically capable of performing the way it was designed for and my answer is an emphatic yes.