I had a set on test for a while and to be fair they worked well. Certainly had no problems. The receiver worked really well in some thick fog and the setup did what it was supposed to do.
Which is why I've seen no reason to buy them.
I have a set of MK1 delks that I use for perching....if I need to, and a set of Nash r3's, along side a pair of old Fox Sx's.
The delks with the vibration sensing work really well, especially with species such as perch which hate any resistance. They also work perfectly well for carp, tench, pike etc.
My old Sx models are war torn and battered beyond belief but work really well. Despite the casing being cut in half by a rampaging carp, after the mono got wrapped around the casing. (If ever Gr60 needed a bigup...that's it!)
The Nash R3'S were an impulse buy. I really like them. Great build quality. The preset sensitivity works well as does the "speed sensing".
My point being. If you want the best bite indication for carp. If you have the money and want the best bite indication. Money is no object. I neeeeeed the best because that's what Kevin mcfairbrass and Mark Delkim Mcblair uses.....
Buy some floats.
No bite alarm will be as accurate It's 50yrds behind the action.
I like the new Rx+. They looked smart. I've not been willing to write prose about how they will change your fishing for the better, because they won't. So they went back.
Good alarms. For what alarms do. Just think carefully about why you are spending your cash.