Ah, the electric rodent, mascot of the series.
It's okay. Electric SUCKS in Gen 1 in terms of gyms. Loses to Brock, is okay against Misty (have fun with Starmie though), is resisted by Surge and Eirika, is usable against Koga, sucks against Sabrina, is usable against Blaine, and is fail against Giovanni.
Actually, scratch that, it's terrible. 3/10 for being good against Misty.
IF by some miracle you get a Light Ball though, then it's a bit better if only because a doubled special attack is insane. 5/10 in that case because it's horrible defenses still mean it'll have a lot of trouble past mid-game.