Finland would be great if it weren't for all the mosquitoes. Covered in lush forests, Finland is also home to over 180,000 lakes, which explains why almost every Finn owns a summer cabin by a lake. Wildlife is plentiful (which is fortunate, since many Finns like to hunt) and diverse. Most of Finland could be described as "middle of nowhere," so if you like rough camping, Finland is a great place to do it. Finland is also very popular for cross-country skiing, as it gets a tremendous amount of snow in the winter. During the summer, the north is beautiful, but mosquitoes are truly intolerable. I've never seen so many mosquitoes in my life.
To my knowledge, there ain't a whole helluvalot in Finland as far as monuments. Most people come for the scenery, as far as I can tell.
Not surprisingly, given its latitude, Finland gets extremely cold in the winter, and gets a great deal of snow. In the summer, it can be reasonably warm, but the weather is unpredictable, and it is often overcast or rainy.
Many people think that all of Scandinavia is insanely expensive. While this is certainly true for Norway, it is not necessarily true for the rest of Scandinavia. Finland, for example, is about the same as the UK or France as far as expense. It ain't cheap, but it doesn't make your eyes bug out when you see the price of a simple lunch.
One thing that makes Finland -- and in fact all of Scandinavia -- very cheap is what they call "every man's right," which says, basically, that you can camp virtually ANYWHERE, for one night. Even on private property, as long as you are more than 150m from a person's house and don't disturb anything (so don't squash somebody's crops), you can camp anywhere you want. I have taken advantage of this quite a bit, and it has saved me a tremendous amount of money in accommodation.
To be totally honest, I couldn't describe "Finnish food." I've heard that they eat a lot of fish, but in Finland I tended to eat a lot of pizza and hamburgers, so I don't really know what constitutes "Finnish food."
I've generally found people in Finland to be friendly and helpful, but it is certainly not true that everybody here speaks English. Most younger people have studied it in school and will understand you if you speak slowly, but many older people do not speak a single word of English. Many others, of course, are quite fluent.
Finland is a very clean place. Even in the cities, I have seen very little trash in the streets. Along the highways there are discards here and there, but it's minimal in comparison to many countries. I camped or stayed with friends most of the time, so I can't say a lot about accommodation, but what I did see was pretty clean.
Finland is pretty darn flat.
Finnish roads are generally good, but I didn't actually do much cycling there, so I'm not sure how many of the roads allow bicycles. I think that you'd be pretty safe in the north, where there are very few people, let alone cars, but in the south you might have a problem running into motorways.