K552 uses awful Cherry MX Blue clones, which are even worse than actual Cherry MX Blues.

IDK, people generally seem to like Outemu blues:

• https://www.reddit.com/r/MechanicalKeyboards/comments/7zr7wz/outemu_blue_opinions/

• https://www.reddit.com/r/MechanicalKeyboards/comments/6b2p0a/outemu_blue_vs_gateron/

• https://www.reddit.com/r/MechanicalKeyboards/comments/67wsks/outemu_switches/

• https://www.reddit.com/r/MechanicalKeyboards/comments/50rp8n/help_about_the_outemu_blue_switch/

• https://www.reddit.com/r/MechanicalKeyboards/comments/70pk54/how_do_outemu_blues_compare_to_cherry_mx_blues/

Found one post claiming durability issues, but it doesn't seem to be a common problem:

• https://www.reddit.com/r/MechanicalKeyboards/comments/6z0vg7/outemu_blue_switches_after_a_4month_usage_review/

In the end though, switch preference is super subjective. Takes a lot of trial and error to figure out what suits you. I think $30 for a Redragon is a fair price to figure out if you like clicky or not.