The Block A is located in Jia Fu Garden, next to Four Points by Sheraton. Metro, Bus, Taxi are available always and near. Wonderful view and green path. Room is clean and furnished as their advertisement. Payment is as same as what you can see in booking websites. Very quiet place. Just be prepared for the lack of English knowledge of Chinese and print the address in Chinese alphabet before travelling via Google map... If not, you will have a serious problem in communication with them.
During my trip, it was rainy heavily every day. Don't forget umbrella, suitable shoes and clothes for this weather if you are going to Shenzhen in April. Check other dates from forecasting websites.
Mostly, the people are good and friendly. Enjoy of COCO park and Galaxy shopping centers. Various restaurants for any type and budget.
Don't forget using Metro. It's cheap, clean, every where, every time ...
Have a nice trip!