Tried it for the first time today after seeing huge lineups in front of the shop for the last few weeks. There wasn't a big line when I got there but I can see why it's worth the wait!
We got slices of the original cheese tart and the premium cheese tart, and also got a whole original cheese tart to go. The original cheese tart that Pablo is famous for was creamy and was balanced out with a nice tartness from the apricot spread on top. Not super sweet, this isn't as light as Tetsu's cheese cake, but definitely has more cheesy flavour. In contrast, the premium cheese tart is more dense and is slightly reminiscent of a less sweet version NY-style cheese cake, fused with a creme brûlée topping. It costs a bit more but definitely worth trying!
I would recommend eating the tarts either in-house or as soon as possible while it's freshly baked as they do start to get soggy after a few hours, especially because the full tarts are pre-packed in the boxes already before you order.