Mipro MI-58RT

I bought it with real concerns about quality for this price, but I was searching for improvements in audio quality, especially when used with KLANG, so I gave it a shot. And it exceeded my expectations by a lot.
The sound quality is much better than any analog system. Way less distortion (almost none) than Shure PSM1000, and stereo separation is way better than in Sennheiser G4. Latency is only 2.2ms, which is less than Shure flagship Axient Digital. So, soundwise it is a huge improvement when compared to even big names which cost several times more.
Now RF part. Please understand, that it is ISM 5.8GHz, which means waves are very short and sensitive to obstacles. This means it will not go well over metal, walls, glass, etc. And preferable it must be in direct line with the antenna. It works fine for 30+ meters. It transmits in several frequencies simultaneously, so that's maybe why it is so stable. However, if RF is compromised it starts sounding like MP3, and the worse it gets - the worse MP3 it sounds. Especially heard in high frequency, it becomes squashed, but it won't lose signal immediately. Before dropping - random beeps are heard, so silence will not come with a surprise. No loud explosive sounds are heard like in other systems.
Already traveled for a few months with those, and overall - musicians are very happy. Even in challenging environments (hotels, industrial buildings) works fine (sometimes changing RF frequency group is needed for better sound quality).
Bodypacks are small, and made of plastic, antennas are integrated inside (which is very good), lithium batteries and chargers are provided, together with quite good headphones.
Rear-to-front antenna rackmount and cable are not included but are a MUST if they will be rack-mounted.
So far super happy with the purchase.

As a singer in front of a rock drummer I battled for years to hear myself properly. Now I have the perfect mix at all times. My vocal is WAY LOUDER than everyone else on stage and I have much better control of my pitch. I wake up the next morning without a sore throat. No dropouts after 10+ gigs. I've wandered out into the bar to test it and range is easily 30+m even with walls and bodies in the way.