Gas might be cheaper and considered more efficient than electric, but I have a lot of difficulty with ours. Even the lowest of the settings on the smallest of the 4 burners is VERY fierce and it is simply not possible to simmer. Perhaps it is just not a good cooktop.

Apart from having to get the leaky regulator fixed, the other problem I experienced here was getting the gas cylinder refills. Several suppliers I tried either didn't answer their phone, didn't speak English or didn't deliver (our building and street doesn't even have any name so I couldn't tell them what my delivery address was anyway!) Eventually I spotted a passing gas truck who was delivering to a neighbour and got the driver's phone number that way. We were several weeks without any gas at all (hooray for microwaves!) so for me having a gas cooktop has been a pain in the butt.