I know what you mean about the different tastes. Here the cucumbers grown in Finland taste completely different to the ones (same variety) grown elsewhere, like Spain. Same for tomatoes and definitely for strawberries. Our neighbours have brilliant raspberries at the end of summer, and we go over and steal some (with their permission) - but we normally go and pick our own strawberries and raspberries from the farms. They are great here.
The only thing that is really good in our yard to eat at the moment, are the cherries. But hopefully we will get more things started this year!
BTW in my experience raspberries are very easy to grow. Easier than strawberries for example.