Безопасен ли devtronic.de?

I had a Problem,a few years ago and they helped me and sold me a refurnished computer,i didnt have much experience with computers and it was good,that they gave me a card,so that i can dial them,whenever i have a question,which happened often. Also i use to buy my anti-virus software in this shop,which isnt expensive,from time to time i visit the shop and buy a few items,mostly it is,that friends say,it was a good buy. I mean,the products of the shop could be described better on the page,it seams not to be so aktuell,you better dial them and ask for current offers,i trust this company and i am planing to buy the next pc there,when the license for the AV-software expires,last time,i was planing to change the Pc,but we finaly decided to change it this year,i mean,by calling them,you may get infos about the current modell,but to buy the little products,you have to visit the shop,it seams most of them are turkish people,but they make an excellent job ,and the shop is always worth visiting it !