HackEEG had a good signal quality in demos – do the ADS1299 TI demo kit, BEATS & PiEEG have a good signal quality as well?

If we compare the signal quality of HackEEG in the following example: to the signal quality of OpenBCI: We can see that it looks very similar. So is the statement that PiEEG is an abandoned prototype of Neurosity Crown with a noisy EEG signal only a rumour set in the world by William Croft from …