Yeah, man, I'd stick with the 5x5. I alternate between a 5x5 and some higher volume/bodybuilding splits throughout the year, but when I run 5x5 I can typically make consistent progress for at least 8-10 weeks. You might be different, but if you didn't stall and your strength was still climbing I'd say keep with it.
This is kind of funny, but I've been deloading the last two weeks doing some volume with a 5x20 split and it feels GREAT! Stellar pumps and it's giving my joints a rest from all the heavy pressing and squatting. Lots of light weight, lots of squeezing, but my weight hasn't gone anywhere and it's letting me heal from some recent setbacks. Good luck, bro!