I think you need to think hard what is a bug. Need to update the URL to the outlook API because microsoft is changing it every now and then? Need to send a new icon/logo because reasons and the client doesn't know how to update an icon himself?
These are dumb things that can be easily sorted out.
On the other hand it's super risky because you don't control the environment of the client (dude can't open a firewall port to make the application work, security department needs 3 weeks of ticket to open the firewall). One unlucky client and you will be in a world of pain.
I think the OP is working on small projects of a reasonable nature/domain or he would have learned the hard way to not promise upfront. (Well, it's possible to do and thrive, never getting burned by a dysfunctional client)
Benefits: You can double the project price to factor in the bugfixing/maintenance included. The client is okay with it because it comes as a great deal, project and maintenance guaranteed. The only reason to work per project as a consultant is to bill wayyy more, because you take on more risk, gotta manage the quality the scope and the client tightly.
I put defect severity definitions right in the contract. Critical, major, minor, cosmetic. Then put like a 24-hour SLA on critical and major only. Maybe 2 business days on a minor or cosmetic. And a max of 30 days post delivery after which we require a change order to address further issues.
These are dumb things that can be easily sorted out.
On the other hand it's super risky because you don't control the environment of the client (dude can't open a firewall port to make the application work, security department needs 3 weeks of ticket to open the firewall). One unlucky client and you will be in a world of pain.
I think the OP is working on small projects of a reasonable nature/domain or he would have learned the hard way to not promise upfront. (Well, it's possible to do and thrive, never getting burned by a dysfunctional client)
Benefits: You can double the project price to factor in the bugfixing/maintenance included. The client is okay with it because it comes as a great deal, project and maintenance guaranteed. The only reason to work per project as a consultant is to bill wayyy more, because you take on more risk, gotta manage the quality the scope and the client tightly.