It's the best... Removes the possibility of a loose or corroded connection, which cause the problem in the first place... If you get a small soldering iron, clean the tip, coat the newly cleaned tip by adding solder to a hot tip, then lightly wipe with a wet/damp paper tower.. do the same to the resistance wire inside the element... that process is called "tinning".. then put the two wires together and solder.... then cover with some high temp electrical tape... I use fiberglass electrical tape... wrap the solder joint well, and you are golden... probably forever... my fixed elec. joint's been running for 6 years... .
Cleaning the wire ends with sand paper is a big deal so, take care to clean them well first... when tinning, the ends should take the solder well... that's a sign they are clean... then the solder will take well.. the solder should be shiny.. shine like a "diamond in a goats butt"....