I almost finished first two episodes, but sadly I have some continues troubles with health and work-load.
Overall my impression: beginning at e1m3 game speedup and give more drive to shoot and less time to find secrets. Many of them easy, but some i missed even at final checkup.
Unfortunately i tried record continues video from E1M4 without interrupts but didn't record the video at all... (In other side my secret seeking may be very boring to watch)
Also my inner looter little hurt by boss-kill-teleport-to-next-lvl-wo-final-looting...