No experience, but I was wondering for some time... 35mm f2.4 can be found for cca 300 euros. For sure many will say (and they will be right) that Zeiss and Voigtlander are better option, but I think that I will go for one. On the net reviews are saying "ok, nothing special, but ok".
"Handevision"... what a weird brand name.
Anyway, the firm IBE is at least a serious manufacturer, though they do not manufacture lens elements themselves.