>>402377438
Different anon in the processing of RMAing my Kickstarter Tundras, so take with a grain of salt. Hopefully replacements will be better.
The bad: In the same position on my hip, my tundra will float away and vanish roughly once a minute, not recovering for 30+ sec. Doing a 360 spin can sometimes help. Vive 3.0 tracker in the same position is rock solid.
The Tundra only somewhat keeps its shit together if mounted somewhere with perfect visibility to multiple basestations at all times, such as on your feet.
Non-Tundra devices do not play nice with Tundra dongles and will drift off and vanish. Tundra devices will also do this when using the dongle. Do not use the dongle, at least not the 5x one. 3x is apparently less problematic.
The screw supports in one of the baseplates sheared straight off under minimal strain ( remaining ones have been fine, but the plastic is still way too thin ).
The Trackers turn on when you plug them in to charge, and will also launch SteamVR, even if you don't hit any buttons. Despite what their manual says about the indicator lights, you cannot tell if they are on, off, charging or fully charged when plugged in.

The good: They're tiny and don't catch on anything. Battery life is greater than Vive 3.0. When not drifting away the tracking is otherwise great, though they can take several minutes to stabilize after turning on.

Even with all these problems I prefer them over Vives for my feet, so maybe get 2