Lace Front Wig Application Lace Wig Application?

Lace Wig Application? - lace front wig application

I want to buy a synthetic lace wig, but I saw in the store has a lot of lace on the front visible in the hairline.
The top is on the field, the profile cut them into the hairline.
Is this normal and a good wig?
Synthetic front straps are adjustable for proper use? What are the advantages and benefits?

Thanks