I have lived in Bandar Tasik Selatan for the past 20 years.
Below are my personal pros and cons:

Pros:
Excellent access to MRR2, North-South Highway, and SUKE.

Well-connected public transport: TBS, LRT, ERL, Komuter, and MRT (Sg Besi).

Walking distance to SRK, SMK, and the mosque.

About 5 minutes drive to Lakefields and Pekan Sungai Besi.

Cons:
High rental competition due to surrounding developments:

i. Under construction: PSV 1 & 2, and SASAR.

ii. Existing: Tasik Height Apartments, PPR, and Desa Tun Razak (military quarters).

Heavy traffic congestion, especially at the traffic light at Medan Selera:

i. On weekday mornings & afternoon due to school buses and parents dropping off & pickup children.

ii. The above developments Shared access to MRR2 (although there's an alternative route in front of Shell, it’s slightly farther).

iii. Cars & Bus Persiaran parked along the road.

My Suggestions:
Book an Airbnb in the area during school days to evaluate traffic flow and nearby amenities.

If you decide to purchase a unit, AVOID unit those facing MRR2 & SUKE, as traffic noise can be quite loud.