The CELRobox looks good, it would be my second choice after the Ultimaker Original.
I can guarantee that it is engineered well (made in Holland) and needs only minor replacements/maintenance.
It has a great build volume and relatively small footprint. Being made of wood it will fit nicely in a woodworking shop as well.
I would not worry about the PLA particles, the fumes contain very little toxic ingredients especially when compared to 3D printing ABS.
It is fully biologically degradable and the smell is pleasant. So far IMO nothing has beaten the Ultimaker for generic 3D printing purposes.