Ask Iris vs The New One

As I was waiting at the bus stop outside Lakeside MRT on Friday night for the 98 bus that would take me to Jurong Island, I got impatient. Then, I noticed I signboard (I forgot to take a pic) of the new SMS Information service(I also forgot the name, sorry) that was supposed to tell you what time buses would arrive. Unlike Ask Iris, this one can be used for both SBS and SMRT, but is only currently being tested at a few bus stops on the West. That bus stop I was waiting at was one of the guinea pig ones. Ok. I arrived at the bus stop around 6:58 pm. At 7:04 I sent out for the new Public Transport one. It estimated the next 98 to arrive 12 minutes later, at 7:16. At 7:08, I sent for the Ask Iris, and that said the 98 bus would come in 6 minutes, at 7:14. The arrival time was more like 7:18. Does that mean the new system is more accurate than Ask Iris? It's probably too early to tell. I would need to test it out a few more times. But since it is being used mainly in the West, it might be a little hard. However, what was irritating was the fact that the bus still took 20 minutes to arrive, and when it finally came, so many people wanted to get onto the bus it took 5 minutes for all of us to get on. Sigh.