I've watched it now for the 1st time so there was no nostalgic appliance for me. The show has an extremely episodic structure, and past the first 3 episodes there's no importance to the order you're viewing them, including the final episodes!
I myself got fed up with the show's static and unprogressive nature around episode 12 and skipped to 37 - I was amazed at how much nothing was changed storywise, and it seemed like a smooth continuation of where I left off. The last episode's later moments does have a small dramatic turn of events but it's way too little and way too late to be respected.
The monster of the day episodes, which are probably 100% of the show, are watchable and some has ok ideas but they have no effect on the story and they are all repetitive (monsters arrive, Devilman beats everyone, everything comes back to normal - Miki doesn't find out Akira is Devilman). Also, an average episode contains an unlimited amount of inconsistencies, questions left unanswered and plot holes.
Regardless of the story's undevelopped mess the show's strong side is its character balance and chemistry. I liked Akira and Miki's general archetypes. He might have been too aggressive for his own good, unlikely for modern shounen heroes, but Miki had the upper hand and Akira was hers.
On the visual department I actually like the art style although it failed to maintain its quality and the animation and movement is laughable, but you should expect that and besides it's the least of the show's problems.
P.S. I must say i got along quite well with the HK rips if you're looking for English subtitles.
