Llulu333100% recommend!!! I always stay in this hotel whenever I come to Shanghai! It's in a great area of the city and right across the road from Changshu Lu subway station (which has two subway lines on).
The hotel has many rooms and is spread out on the 18th, 19th, and 20th floors of the building. Which means that there are incredible views of the city! I recommend paying a little extra and getting the room with a window, just for the view!
The rooms are very clean with amazing bedding and pillows. You also have a personal TV, aircon, toiletries pack, bottle of water and slippers etc. There are water filter machines on each floor and usually free tea on the lobby floor. The staff are there 24 hours at the front desk, so you can check in anytime. The bathrooms are always really clean, and the cleaning ladies are always in out, making sure everything is nice.
Bonus: The famous SYSTEM night club is also in the same building (around 3rd floor). So you can party and then go up to your room on the 19th floor!