I must say, without hesitation and doubt, that Claud 4 is my most important tool. I literally feel like I have the intelligence of the entire human race at my fingertips, giddily awaiting a caress from the tips of my fingertips. I honestly could not imagine my developer life without the twain of Opus and Sonnet.
Not my opinion of course, I just thought I'd include it as I found it surprisingly missing from the comments.