If there is an adverb or prepositional phrase at the beginning of the sentence, the verb goes after the subject. In this sentence, "för oss" is a prepositional phrase, so "är" (the verb) goes before "det" (the subject). Another example: I morgon vill jag dricka mycket vatten. -- Tomorrow I want to drink a lot of water. or Troligtvis sjunger han. -- Probably he sings.
Since the H of honor is pronounced the H must be dropped like I did. For words like herb H stays because the H is there but it is not pronounced. Some people maintain that in writing either way is OK but when I studied English in school in Italy with a British teacher, he insisted that even in writing should be dropped. However that was about a eon ago so may be the evolution of languages has changed everything!