In Use, Conclusion
The mat functions without the companion Synapse software and provides charge immediately. Note that the ERT is only applicable to the Mamba HyperFlux mouse so there's no opportunity of charging smartphones and the like. It takes about five seconds for the Mamba to mate with the pad and become operational, which is no big deal because that time is usually taken up by the computer boot process, though it may cause minor irritation if the mouse is left to one side.
The direct-to-mouse magnetic induction is even across the pad: we tried it on every segment and were able to get a strong connection in each location. Mamba's supercapacitor fills up as the mouse is left on the pad, enough to give it temporary charge for those lift-off scenarios. After a couple of minutes, there's enough residual charge to keep the mouse active, without the need for the mat, for around 10 seconds, which is plenty of time for moving it up and away during fast panning. Importantly, putting it back on the pad results in an instant, lag-free connection; enough for it to feel like a regular wireless mouse or, for that matter, a corded solution.
There's some form of power-saving mode as the mouse turns itself off after a period of inactivity, requiring a gentle nudge to bring it back to life. After a while, you pretty much forget it's using ERT and think of it as a corded/normal wireless mouse - it has the same general feel as a regular Mamba. The intrinsic benefit with this approach is there's no need to recharge the batteries, because there are none, and a lighter weight that feels more natural to gamers who have honed their skills on sub-100g mice.