Sydney Trains chief executive Howard Collins was a happy chief controller this morning.

"We are really pleased with the service and the loadings on the trains," he said at Chatswood station where he checked on how easily passengers switched from the driverless metro trains to double-deck Sydney Trains services during the morning peak.

"What was great to see was ordinary commuters use Sydney Metro," he said.

"[Chatswood] and Epping have been quite busy but the interchanging has been excellent. People are spreading along the platforms."

The new Sydney Metro Northwest has passed its first real peak-hour test. 

Trains along the new line were well-utilised on Monday morning (we'll get the numbers for you later) and ran pretty smoothly, including at the crucial interchange points between the Metro and the double-decker train networks at Epping and Chatswood where there had been concerns about possible overcrowding if timetables didn't line up. 

Were you on a new peakhour train this morning? Let us know how your journey went in the comments.

A Sydney Metro spokesman has responded to concerns from commuters about trains overshooting the correct positon on the platform and having to adjust their position before opening doors, saying it is a "normal" part of how the driverless trains operate. 

"The metro trains are designed to adjust their position if required, moving forward and backwards to line up with the doors. This is normal and only takes a few moments. It’s due to the train's rate of slowing varying, depending on passenger numbers and speed."

Epping resident Julia Hood gave the thumbs up to the new metro services on her first ride, saying the driverless train she rode to Chatswood was "smooth, quick and easy".

"Once it goes all the way to the city it will be better," she said. "It will be the option of going the whole way on the train or changing here [at Chatswood]."

The second stage of the metro line from Chatswood, under Sydney Harbour to the CBD, and into Sydenham and Bankstown is due to be opened by 2024.

A train at Epping has been forced to reverse after overshooting the platform, resulting in a bit of an awkward wait for passengers – though it wasn't as disruptive as the misalignment on Sunday that caused a 20 minute hold-up and flow-on delays.

On another positive note, check out the orderly commuter behaviour as people line up to the each side of the door! Full marks. 

One Cherrybrook commuter, Martin, said he was looking forward to the convenience and said the train was "so far so good", but he was a bit frustrated at having to wait while the train reversed after it slightly overshot the platform.

"I think it must be a software issue. They should have noticed well before this - maybe it’s the load of so many people," Martin said.

Other than that, he's expecting the new train to save him 20-30 minutes each way as he commutes to and from the city. 

Paul Nijjar caught the train for the first time from Bella Vista this morning about 8.10. His reaction?

"It was awesome. It’s up there with Japan now," he said.

Mr Nijjar said it used to take about an hour and 20 minutes to get to work in Rhodes, but with the new metro it should be under an hour.

About 140,000 people took a trip on Sydney’s first driverless metro line on the opening day.

We bumped into the state’s secretary for Transport, Rodd Staples, at Chatswood station who told us yesterday was "an exceptional day" in terms of the sheer volume of train spotters who turned up for a ride.

Mr Staples, who was the architect of Sydney’s plans for metro lines, said the rail system was coping well on the first weekday in operation.

"There’s a healthy number of people using the system on the first day," he said.

NSW Premier Gladys Berejiklian apologised for the "small glitch" on opening day where a train got stuck when its doors didn't line up with the platform; but she said on the whole, things went really well.

"I hope today will be glitch free," she told Nine's Today Show on Monday.

"But you'd expect in the first few weeks and even months that it won't be perfect. We are asking people to be patient and I want to thank everybody for their patience."

When the newly-opened line reaches full operation, trains will run every four minutes each way during peak hour between Rouse Hill and Chatswood.

We're seeing some crowded platforms as trains pull in at two key stations, Epping and Chatswood. 

But while the platforms are filling up with patrons, they are clearing out again once the trains stop and pick them up.

Trains approaching Epping are already packed and commuters are not impressed with the frequency of trains so far, which are running every 10 minutes. 

Esther Kim commutes from Castle Hill to QVB, and usually gets the bus. She said she is looking forward to a "quicker and faster" trip.

"From my home if I leave before 7am, it’s one hour, but after 7am it can be 1.5 hours."