I'm really not familiar with TopLace pieces.
Someone else will have to advise you on that.
How long any piece last varies from wearer to wearer.

Its not so much about the base as how you treat & maintain the hair.
Most people get at least 4 months, but many get twice that.

There is a pay-off between durability and detectability.
The stronger the base, usually the thicker the lace.