All dears,needs suggestion

Hi,everybody!!
Emergency!

Now our company are planning to purchase Dreambox series,DM800HD-S,DM800HD-C,DM500S/C/T,DM600S/C,DM500 wifi wireless,and at present we are talking over with one of the chinese companies in shenzhen,the company name is Shenzhen Forever well Business Co.,Ltd,and their brand is FOREVER, the person i am talking with called Linda,the following are her contact information:
MSN:hdstbsz@hotmail.com cellphole:15019269394
I have heard this company is very good,not only the quality,but also the aftersale service,but i am not sure.
So is there anybody who know this company,and how about it?We are urgent to looking forward to all friends's reply.Tks a lot.