I always get a normal taxi to somewhere near Bugis, it's about $20-25. I find that UberX isn't that much cheaper than flagging down a taxi (and sometimes more expensive), but it's far more convenient.

Last time, due to the amount of luggage I had, I took something from the "ground transportation" desk - $50 for a large car, which didn't even fit all our luggage in. Wife + 2 children, and most of the bags/car seats/prams/etc.

I took a normal taxi to Hougang, having waited for one advertising accepting credit cards. Got there, and his machine was "broken". I gave him a US$20 as I had not SG currency. Sigh. Uber is far superior. The return trip in I tried Uber from Changi a couple of months ago, and couldn't find out where the guy was -- the GPS showed him on top of me, but which floor was anyone's guess.

On the way back I booked one uberxl and one ubertaxi -- $18 for the XL, and fit a ton of baggage in.

I spent July commuting in Singapore with uberx, ubertaxi, uberxl, uberexec. 48 trips over 30 days, about S$500 worth. Took about 8 taxis in that time as well.

Had one issue - Uber broke during the trip, the trip just vanished from the drivers phone, and I couldn't even connect to it from my phone. Driver phoned up a friend, who was also having problems. The driver wouldn't take cash, despite him having no idea if it would get paid for the trip.

The fare charged OK later on, at $18 (estimate was about that), however a week later I had an email refunding me, so I've only paid $5. I've disputed this fare, as it should have been $18.

In those 48 trips I gave 1 3-star -- driver had similar hygiene issues as an average NYC cab. Rest got 4 or 5 stars.