The major downside of course being you don't want to be more than a few arm's lengths away from the camera at any one time.
Why? Rode specifies a 70 meter transmission range.
Have you actually used the Wireless Go? Or are you just shitting on something because it doesn't fit into the status quo for high end film productions?
As with everything in the audio industry, there are a number of right tools at various price and performance points. Maybe I didn't make my intended use clear. I'm looking for a small lighter weight product that I can use for online learning video, Youtube videos, real estate walk through, and for my saxophone paying with my DPA 4099. (The DPA may be the deal breaker for me, since I can't get a firm answer from Rode on the power output for the 1/8" jack). But I'm not using a full sized film camera with XLR inputs and a full steady cam. This is basically C-roll level production.