Hi Teme,
I am also considering buying something more professional. I spoke with Gad from Coffee Tech re. batch size of the Maggiolino and Torrefattore and he recommended no smaller batches than 400g on the Maggio and no smaller than 500g on the Torre. I love the compact size on the Torrefattore if you compare it with the Toper Cafemmino, which is huge but fairly acceptable in price . I am not looking for a sample roaster so a minimum batch size of 500g would be ok. Still the prize of the Torrefattore is close to a 2kg Oz (much too big in size for me). Roasting bigger batch sizes than 300g will always result in more smoke so a chaff cyclon is a must to me.
Reinhold