Heads up on using iSTFTNet

Hey there, Magnificent project, i've spent quite some time looking for a project like this one (ended up finding this via Leanspeech). During my research, i've come upon this thing : https://github.com/rishikksh20/iSTFTNet-pytorch/ From what I gathered, optispeech is using WaveNext as a vocoder. It seems to work really well (in this case, at least). I was wondering if you'd heard about iSTFTNet and if you knew: - if it performed as well as WaveNext - if it was more lightweight (in memory & CPU usage) than WaveNext