Without any doubt, they drive well - and the huge warranty has to be a bonus....although Daewoo tried a similar marketing scheme and look what happened to them.
The main problem - if that is indeed what it is - is that other manufacturers don't want them as trade ins and will consequently offer you less at trade in time.
I've only driven a Picanto hire car though - and I thought that it was fairly unexceptional in all areas but perfectly acceptable overall. A good town car! Fairly noisy and bumpy suspension otherwise.
John