Yeah, you might like it. Although at higher volume it won't keep up with the 3015LF.
If you forego the crossover and bi-amp then you can more easily control the balance between the woofer and the mid. That might help in the meantime.
I too was going to go a cheaper route on the mid and I am so glad I didn't. That 18 Sound mid is killer and mids are where your tone lies.
This is the place to ask these questions though...
fEARful