I personally own a orignal 1st gen 8-channel unit, and despite newer gens being hardware-wise more capable, I still find this legacy device useful, in particula

I personally own a orignal 1st gen 8-channel unit, and despite newer gens being hardware-wise more capable, I still find this legacy device useful, in particular, for deep probing JTAG TAPs. The price hike was painful though, and definitely not justifiable by hardware despite being well manufactured. They also make some fairly bold claims by stating that it directly "Works with RS-232, 422/3, 485", although I'd be willing to bet none of their units would survive anything close to full admissible voltage range per respective TIA spec let alone properly handle termination, which is a real trap for the occasional hobbyist. Hardware aside, I think the real value is in software UX, which they've executed quite well.