Vonets should work , but I suguest you use eighter cable or a Wlan stick .
Basicly its difficult to get the best answer on what E2 is the best , I suguest you trye the different E2 and choose what YOU like .
If you think about alien 8900 vs alien2 it the numbers of tuner inside reciever
8900 is a single tuner and alien2 have 2 X DVB-S2 tuners it also come in 3 tuners version where 3. tuner is for DVB-T / DVB-C or the + version DVB-T2 / DVB-C2 .
The choise depend on YOUR needs