Also, every single day public defenders waive the right to a speedy trial on behalf of their clients before those people even know what is happening or what is being done.
Because otherwise the client will be in jail before their lawyers know what's happening because the prosecution had all the time in the world to prepare their case before laying down charges, and overworked public defenders need time to build a case to defend an already built case?
Of course you can waive your right to appeal. It's a settlement. You waive lots of stuff in a plea, also your fourth amendment rights via allocution typically.
I agree that it's not necessarily unconscionable to allow this, but I'm curious about appeals on grounds of legal malpractice - if the lawyer who crafted your "no appeals" deal was on violation of their fiduciary duty, can you appeal the court's acceptance of the plea bargain?
You've admitted guilt with full knowledge of the legal consequences, while advised by an attorney [unless you self-represent and fire your public defender].
I'd say its the one situation where, yes, it isn't going to be 100% perfect but trying to "improve" it will likely have collateral damage.
https://www.google.com/search?q=public+defenders+waive+right...
You know, that pesky sixth amendment that was so important.