I had a dual sim Samung, very slow 2.x Android, locks up all the Time. This Lenovo is a bit large (difficult to handle with one hand) but fast, does not lock up, incredible screen and also dual sim! The reseller gave all kinds of extras in the delivery like a usb micro sim adapter, protective case and screen protectors, Great. You can order with this chinese reseller without any doubt, also for delivery to Germany or an other European country (i life in Germany).
After a few months I have a lot of trouble with the low 1 GB memory, impossible to install new apps. I rooted, used all kinds of tools but the system image of almost 800 KB fills the base so that there is not much left after Chrome, Gmail (update on buildin) ... really a problem. I asked the reseller by Email but got no answer. I seems to be a Lenovo problem (blogs...)