hp 50G vs hp 35s (keyboard and overall build-quality)

[zx_spectrum]

actually i am not bringing up the compassion between 35s and 48g because i am confused about which one to get ; the 35s is out of question for me as i need all the functionality i can get.
but rather i brought up this subject because i got a solid impression from reviews that the 35s is poorly constructed (mind you; i never held one in hands) and i just wanted to check how the 50g is compared to that; is it as bad? is it some how better ?!! basically just trying to probe its build-quality by making a comparison to what i thought is a known data point (the 35s quality)
i am just trying to aid my decision about whether to invest a pile of money in 50g or get more 48gs (although yes the 48g is slow)
i really really really care about the quality and robustness of my tools
but it seems from your feedback that the build-quality of 50g is ok of course it is not 48g quality but just ok