Saw a review that compared these to GLR couplings, interesting video. The problem for me, is that I have multiple 2+8 hst rakes but the coaches are all from different batches, for example my Fgw rake would only need one type, whereas my intercity set would need about 2. A few people mentioned unreliable connections, nice to see a new coupling. But I don’t understand the hype behind it. And it doesn’t really seem suitable for shunting layouts, however they look great on dean parks layout, especially for push pull