[1][2] Solo exhibitions of his work have been held at the Musée national des beaux-arts du Québec (Quebec City) and galleries in Montreal, Toronto, Ottawa, London, Paris, Berlin, Boston and New York.
"Distinguished by mood and sweep of the motif", Hoffer's landscapes are described in The New York Sun as "luminous skies set off by the outline of trees, the dramas of light and shade.
"[6] Ottawa Citizen reviewer, Peter Simpson, noted: "They have a grey hardiness that projects a grand, vast, transcendent solitude," while a lone hardwood conveys "a vulnerability even in these rocks and rugged greenery".
[7] Montreal Gazette art reviewer Lynn Moore noted that the narrative produced by Hoffer's "less than spectacular" subjects – "What caused that break in the tree line on the horizon?"
"[1] For reviewer Ève Dorais: Hoffer's technique – layered paint, exposed surfaces and reflective finish – affirms that art "is a construction, a staging, a game of the mind," with viewers as "actors" mirrored within an idyllic landscape.
[2] A protective packaging for the precious objet d'art, the gloss finish also serves as a "threshold to another state of mind": "The curious have to step closer, change their perspective and look longer to get past reflections to see the details under the surface glimmer.