I have a CTek and it kept my Plus8 and now Plus Four nicely maintained. I opted for the direct to battery connection supplied with it as it gives a better connection over a power socket that sometimes can be a bit loose. I connect it when the car is garaged but sometimes not for a few days. The cycles it goes through kept the Plus8 Odyssey battery going excellently for 10 years, it was on the car when bought so more years to add. The Plus Four has a Banner battery so no problems expected. Car has done 18k+ miles over the 2 years of ownership from new.
