I've been a scooterer since the early 1990s, in Canada and Australia. But I'm old and fat now and have settled into a (small Suzuki Swift) car. If I were younger I'd probably still have a scooter.
You will see a lot of scooters on the road here--not as many as Europe or South Asia, but still quite a lot. For a journey of 10k or less it's not a bad way to get around on local roads. But if you need to use a motorway, the inexpensive 50cc models aren't allowed. There also isn't as much scooter/motorcycle parking as there should be in a city this size. Though it is improving. Some workplaces with private car parks will let you park for free; others will charge a reduced fee; others will expect you to rent a car space and pay the same amount.
Coming from Vancouver--which is in a rainforest and gets buckets of rain for 4 months every winter--the "winter" here seems mild. But if you're stuck out on the bike in a downpour and wet (no waterproofs or the waterproofs are failing you) you will feel cold. So get lots of pairs of gloves.
If you do get a scooter I suggest getting more with more power than 50cc. Regardless, take a motorcycle road safety course--a good idea whenever you move countries, even if an experienced rider. And unless your ride is really short--2km or less--wear a proper motorcycle full face helmet and jacket. A summer jacket will probably do fine. But trust me, when you come off a scooter at even 40km you don't want to rely on cotton clothing.