Stayed two nights in the semi double room at close to SGD180 per night - their semi double rooms are slightly larger than the usual, at 18 sqm - fine for two people with two suitcases. Room was functional, but feels quite like a business hotel overall.
Picked this for the location, convenient to explore shinjuku, shibuya and the surroundings. From Shinjuku Station, take the Oedo Line, two stops to Nishi-Shinjuku-gochome Station, and walk about 240m to the hotel. No lack of convenience stores nearby. The Tokyo Metropolitan Government Building is also 700m away - go for great views for free.
Cheapest / most cost effective way to get to Narita Airport from this hotel: walk to Nishi-shinjuku-gochome Station, take Oedo Line to Daimon Station, change to Asakusa Line (エアポート快特Narita-Airport) direct to Narita Airport. Takes about 1 h 40 minutes at 1380 yen, but do a search on specific timings of the train to the airport - doesn't depart regularly.