It is a beautiful view to see.....if the weather is clear. You should know that in winter, sometimes the view would be hindered by snow. You can still ride the ropeway up, but you might not be able to see anything. In other seasons (mainly autumn), the ropeway operation might be stopped since there might be strong winds. Luckily, they provide a weather update (every 5 minutes) on their website. Do check their website beforehand!
The night view of Hakodate, earning 3 stars on the Michelin guide, has a beauty that you must see