Apologies if a repeat question. I've had my 21 for the last year now. I do not hate it at all but I also do not love it. The issues have been mostly minor but these can add up and become frustrating. The most frustrating is the echo complaint I get from others when I have it on speaker. Although as of late I have not had anyone complain about this. I really do not need to spend the money to switch over to the S-22 but for those who have done this have you found it to be worthwhile?