Howdi, in my book the length of your loan is a major factor in deciding between the 2 flavors.
We took out a 20 year loan with the first 10 year fixed because I mistakenly believed (at the time) that inflation was coming. It wasn't and I lost some money in doing so. However we all make the call when the time comes, sometimes its right and other times its not. It was an error on my part but fortunately it wasn't such an expensive one... My fault was in believing anything the prime minister had to say
The 2nd 10 years defaulted to a lower floating rate.
After year 5 we went back to the bank and said, we want a lower rate. What can you do for us ?
We were implying that we could take our loan elsewhere. Like many of us here in Japan, we are lucky enough to be doing fairly well in life with a positive cash flow and a good life. The bank knows we are good customers, after all they use our accounts to make more money right ? My mentor always said "business is business and love is bullshit".
They lowered the loan rate and thanked us for our business. So if you don't ask, you won't get it.
We ended up going with a lower rate for the remaining 5 years on the fixed rate, with the defaulting floating numbers after that. Noting that before that occurs we will once again be in their offices suggesting another "adjustment" of the loan is necessary.
Yes its a lot of extra work to go through the mortgage process. Indeed whenever someone checks your credit rating in North America it takes a minor hit. I don't know how the Japanese handle that sort of transaction.
Yet to have the ammunition of an alternative bank when you go into the original loan provider is like sitting in first class.
An early payment penalty sounds like the bank trying to foist costs upon the customer. I heard the same thing when signing the contract, yet after getting the lower rate 5 years into it, the saving more than pay for any "penalty" they would impose. Of course before I paid any penalty I would move my loan to a different bank making sure to renegotiate in the process of doing so.
"Gee it would be difficult for me to change my loan, but if you insist on charging me a penalty for early payment I have no other choice but to consider taking my business elsewhere. Please think about your decision"