Stress-free as my moggy hates worming tablets with a passion and there is no disguising them - she can sniff them out a mile away. Considered the pill pockets but they were just too expensive to be cost-effective, when added to the cost of the tablets.
These pipettes are a much much better solution, both from my cat's perspective and mine, so easy to administer. Great price compared to the cost of buying an individual pipette from the vet. The most important thing however is that regular dosing is keeping her free from infection.