Renting a
condo is advantageous if :
1) safety is important to you especially if you are a femaleas it usually comes with security services.
2) you are a sporty person as most
condos here, especially newer ones have gym and swimming pool
Advantage of renting a HDB apartment is that it is definitely less pricey.
Which location?
If you do not drive or cook, then it's important to stay near some amenities such as supermarkets, food centres, MRT (train) station or bus stops as it is easier for you to get round and travelling is less costly and more convenient. The problem in Singapore is that during peak hours, it's hard to catch a cab unless you are willing to pay more to book one.
Tanjong Pagar has a train station there. Thus it depends on where your exact working place is, whether it's within walking distance to the train station. You are working in CBD, central of Singapore, where rentals are expensive. Choice locations nearby is currently very expensive as
property market in Singapore is booming now, and rentals have accelerate by quite a bit in recent months.
You may rent a studio apartment at locations such as Bukit Timah, Novena, Marine Parade or Holland Village. Marine Parade is near the beach and it can be quite a happening place during the weekend. Holland V has a lot of eating and drinking places.
For HDB flats, you can stay in nearby Tiong Bahru, Kim Tian, or Clementi.
If you drive, you have to take a theory test in Singapore and obtain a licence to drive here. Only tourists need not take the test. But do keep in mind that there is a long queue for the test and it can take weeks before you get a time slot.
I personally think that an agent from a agency should be able to match a place for you well but do look for a few agents to narrow down your search and ignore agents who provide you bad service. If you know of friends who know of people who are renting out, that will be even better. Do read your tenancy contract carefully and ensure that there's a diplomatic clause in there, that is, allow to terminate if you decide to relocate anytime.
Enjoy your stay in Singapore!