The Senatus is in a great down town location in Sultanahmet, which is the old part of Istanbul very close to the Blue Mosque and the Aya Sofya. It is set amongst many local taverns and other hotels, in a very lively location. The hotel facilities are basic, but very clean and the shower was hot and bathroom supplied with a hospitality pack of toiletries.
Our package included breakfast which was buffet style and a reasonable selection of fruit, local cooked food (eggs, etc,), cereals and breads. The staff were always very helpful if a little vacant at times. All in all, wouldn't hesitate to stay here again, and hope to in the future.
Tip : Take GBP and exchange locally, the rate was much better and the some traders in the Grand Bazaar gave better prices for GBP.