Shinjuku/Shinbya/Hardrock/Asakura

We are spending 3days in Tokyo. We intend to stay @ Shinjuku. What is the recommendated hotel? We intend to go mid Jul. What is the weather condition? If we intend to go Yokohama, how long is the journey?

What is the recommendated hotel?

The Park Hyatt is the best hotel in the Shinjuku area:
http://tokyo.park.hyatt.com/hyatt/hotels/index.jsp

What is the weather condition?

Some basics:
http://www.japan-guide.com/e/e2273.html

If we intend to go Yokohama, how long is the journey?

30 minutes:
http://www.japan-guide.com/e/e2360.html
http://www.jorudan.co.jp/english/norikae/

We are looking for 3star hotel. How abt Sunroute, Century Southern Tower and Shinjuku Prince. Which is better? How do we travel from Shinjuku to Hardrock Cafe?

a 1/2 second google search showss that the Hard rock cafe is in the JR Ueno station. You can go there by the JR Yamanote line or go to Shibuya by the Yamanote then take th Ginza line subway to Ueno. Asakusa is a few stops on the same subway line past Ueno. the Yamanote is more interesting than the Ginza as it is an elevated line with a great view of the city.

I recommend the Century Southern Tower. It is relatively new, has nice views and a great location.

There is a also a Hard Rock Cafe in Roppongi.

July- high possibility of drizzly, hot humid weather. A bit cooler earlier in the month while it is still the rainy season.

Can be very hot (33 deg +) at the end of the month.

What are recommend places can we consider on our 3days extension? If possible, pls advice on how to reach the destination as this is our first time in Tokyo free and easy.

How is the charges? Do they have any airport transfer?