I don't particularly like the font, although I only really object to the theta.
There are other nitpicks: The pi looks too italic to me, though I can't really say its wrong (whatever "wrong" means). The spacing between the integral sign and the integrand is too big -- but this is a common problem even in real LaTex.
Overall, it looks decent but just not as nice as the maths that TeX has been pumping out for decades now.
As long as we're nitpicking, the d in front of the theta shouldn't really be italicizes, anyway. I'd class that more as an input error than an output error, though.
There are other nitpicks: The pi looks too italic to me, though I can't really say its wrong (whatever "wrong" means). The spacing between the integral sign and the integrand is too big -- but this is a common problem even in real LaTex.
Overall, it looks decent but just not as nice as the maths that TeX has been pumping out for decades now.