Whether it is worth it or not, it's very subjective. Moreover you can't compare the tints since you have to install the tints on your car then only you can compare. In other words, one can only judge on the performance of the tint based on past experiences, specification (TSER) or word of mouth from the forum.

Yes, V-Kool Elite is expensive but so far it's the best tint in terms of heat rejection, in my experience. I have not tried many but have only compared it to the Huper Optik. I switched to Huper Optik when I bought a new car as it is cheaper. Sech 60 and C40. The Huper Optik combination is not as cool as the V-kool. It feels slightly hotter in the car when compared to V-kool. That's not to say Huper Optik is bad. IT is still a good tint but comparatively it just did slightly worse than V-kool. The Huper Optik costs around RM1600+/- for a C-segment, maybe slightly cheaper for a B-segment like the Honda City.

So if you ask me again whether to go with V-kool or any other tint, it's your choice really, whether you are willing to pay extra RM1000 or more to get slightly superior performance. No doubt V-kool's performance in terms of heat rejection is superb but it is costlier than most tints out there. I have not tried other tints such as Raytech, Llumar etc. so no comment there.