Depends on the job, for small to medium sized jobs i will use hwe, if they are low profile carpet tiles i wil always bonnet after hwe (post bonnet). On some jobs i will bonnet only, if can get away with it, ie large lightly used offices to save time. If you ever get a really dirty low profile carpet/tile, i would vac it till death then prespray and agitate with rotary with a red pad or soft brush then after hwe i would post bonnet and place air movers to prevent wick back. When you mention hotels, most hotels tend to have domestic type carpets anyway so you will probably be fine with just hwe, but a rotary is a must long term if you want to carry out more commercial jobs in my opinion.