The top reviews for this manga rave about its plot, the MC and tout 10 stars, which convinced me that it would be a good read. So, I started reading... And dropped it around Chapter 41. (I did, skim the rest of the chapters; it's up to 97 currently.)
Namaikizakari does remind me of Maid-sama!, there's no doubt. EXCEPT, I found Misaki-chan a lot more likeable. While Yuki is relatable, strong, and even admirable in the beginning chapters, her lack of growth and honesty really began to irk me as the plot progressed. I don't think it's a good habit of judging characters while reading manga, but it's kind of hard to forgive all of her faults because she's just that "oblivious" or "naive". I think the problem was, the writer did such a good job writing Naruse-kun that you can't really help but empathize with him and his genuine love for the MC. Even the love rivals that appear in the plot are all beautiful and lovable, so when the MC is as weak (some even call her "stupid") as Yuki is, it's annoying.
Pros: Beautiful art. I've already mentioned this, but not just Naruse... They are ALL good looking. =) That goes for the girls too. They're all beautiful. Secondary characters, rivals, even the old teacher advisor. Bonus!
Cons: Weak MC amidst such strong wonderful opposites.
Final words: Its pluses are as strong as its weaknesses. So, give it a try if you're looking for a true "dramatic romance" with a reverse harem vibe. It's meant to be a romance (and there are definitely romantic bits), but the way the plot unrolls, it's a thin line away from a reverse harem.