That's good to hear!
With modern petrol, lots of ethanol in it, if you have all eight firing now and you use it regularly you won't have a problem with the injectors, they very likely only got stuck because they dried out while sitting.
I've had two sets of injectors cleaned in my life, and in both cases I have had one fail within a year - my conclusion is it is just not worth it.
One failed wide open, the other failed shorting the whole bank to the block, opening up all four wide open....