I've never been keen on him. He is something like Sterling a couple of years back. All speed with little end product.
Zaha is decidedly not a strikerLlorente replacement for 50+million
Sterling have gone from headless chicken to one of the best wide forwards in the league, under the guidance of Guardiola. A part of me believes Zaha, a player with more natural atleticism and talent than Sterling ever had, could become world class under Pochettino.
On the other hand I'm not sure it's worth paying the premier league premium price / wages for securing Zaha. There are some real quality players in France and Germany that might come available and it might be better going that route and instead focus on paying the premium prices on CM and RB.