The Lensmen series is a bit hit or miss for me. The early works are pretty decent, especially the fun capital ship combat. The later bits drag, sometimes painfully so. It's almost "Flash Gordon" levels of ridiculous in many parts.

Overall, I don't think the series has aged especially well, definitely not in today's climate. Some of it is downright embarrassingly bad.

I enjoyed it a lot more as a young kid, to be fair.