I stayed at the Collosseum Hotel Dar es Salaam in order to use the gym facilities, which are excellent and made the hotel worth staying at.
It opens early in the morning and has a large and good range of machines / weights and a good outdoor pool (although best used later on in the day once clean).
The hotel has a selection of both deluxe and suite rooms. All rooms have been created to make your experience just like being at home, from the widescreen plasma televisions and full air-conditioning to the complimentary internet service....
The hotel itself is 'fine' if you're in Dar for business. The rooms are large, clean and comfortable but fairly spartan - as is the rest of the hotel. Don't expect any frills.
The breakfast is OK and the dinner menu - if you decide to stay in the hotel - has a good range.
I wouldn't stay in the Colosseum if you are working in the city centre. Whilst it is great to get out to the peninsular at the end of the day - you'll have to battle with the traffic - morning and evening - which can be horrendous.
Overall - yes - I would stay here again if I were returning to Dar as a visitor simply because of the fitness facilities and because I personally enjoyed being out on the peninsular during the weekend.
The fitness center has modern equipment and enough space that you don't have to wait for a machine (or for floor space) even during the club's busiest hours.
The staff are friendly and professional, and always go out of their way to help me. Chris and the team at the front desk are wonderful, always ready to help me arrange taxis, choose a location for dinner, and deal with local logistics like mobile phone cards and domestic travel arrangements.
In addition to these facilities the opulent Suites have a 2-room design with a lounge area and kitchen attached to the bedroom. The kitchen is fully equipped with a microwave, fridge, hot plates, kettle and all kitchen utensils and crockery. The lounge area leads out on to a balcony with another seating area.