Even if it doesn't bear much resemblance to the books, I'll happily watch season after season, so long as the acting, script etc. is good. Nothing it does will change that the books exist in their current form, and I'm just glad we're getting some big-budget fantasy TV series.
Between Expanse, Lord of the Rings, Wheel of Time, and Picard all on the way, Amazon is quickly becoming my go-to place for genre shows.