Is zumba enough?

littletoblerone

Hello everyone,

I have a slight worry here.
I do zumba classes 4-5 times a week and I try to put in some aerobics in my week as well.
Our zumba classes consist of 45 minutes of dancing (we have one song with weights for the upper body) and the last 15 minutes are butt exercises, abs and back (crunches push ups and so on). I try extra hard in this part and usually do twice the amount of exercise than I'm supposed to (for instance doing 50 crunches instead of 25 and so on). I feel perfectly fine and I eat enough and I feel healthy while losing weight.

Everywhere I read on the Internet, though, says I should include a weight training class (which I hate). Is what we do in zumba enough or should I take this seriously and take up a weight training class as well?

Furthermore, I've been doing zumba for a month now. When roughly am I expected to plateau? And will it even happen now since I'm trying to include more aerobics into my week (gradually, to prevent exercise induced nausea)?
Thanks for any input.