Same experience here, the CPU usage is very reasonable, and it all sounds fantastic, perhaps even their best yet. Unfortunately this seems to have come at the cost of considerable latency: 129 samples for amp 2, quite unprecedented for an amp sim VST in my experience. Of course Neural DSP’s plugins are top quality, so we might expect them to use more resources than some others. But Plini was originally a zero-latency plug-in, and so we know Neural are capable of producing zero latency in a top-quality package.
Some people are more sensitive to latency than others; for some this latency will be unnoticeable, for others a deal-breaker, especially if their interface struggles at low buffer settings. For myself, if I buy this plug-in I will likely play through a zero-latency sim and then apply Gojira afterwards at the mixing stage. But I would like to suggest to Neural that they might follow the example of many developers of EQs and compressors and offer a lower-quality zero-latency mode that will automatically render at the highest quality. This would, I think, be doubly important if Neural are planning to apply such latency across their range going forward.