Sennheiser ew 172 G3

I regularly use this system for 2-3 years with a bass. Before buying, I had a Samson Airline, format pedal, which tended to "eat" a little lower frequencies.
No such problems with this unit, I tried it by borrowing my guitar, and it worked very well for my bass (granted fairly low D or C).
I love its ease of use: once you set a frequency, there is more than the on / off button to press when you want to use. I have not previously needed to explore some advanced functions, everything works fine.
I've never had to worry of signal loss, even playing through the double doors of the studio and away from me it always works. Autonomy is still very respectable.

I find the price / quality ratio very good, the ear I hear no difference between the times when I use a cable. For common use (no need to connect multiple instruments at once, etc ...), I do not see the point of buying a more expensive wireless.
Downside: racketeering gear, it costs € 40 more to buy the rack kit, and another 40 € to deport antennas are found otherwise to the rack ... It is expensive for what it is ... I do not know what it is from this point to the other brands.
The same antennas, plastic, are somewhat cheap compared to the rest of the system.
Over time, I think I'd still make the same choice.