Whether you want to buy a new or used camper , take the time to decide and choose. However, while you know your needs or you can focus on them yourself, and in this my checklist will help you (please, make two lists: primary and secondary needs), the knowledge of what the motorhome market offers , especially in terms of proposed solutions, you have to acquire it.
Go and see some campers , it doesn't matter if you buy them or not, you have to "touch" the differences between the various types of bed, go into the bathrooms, understand what a garage locker looks like, see the stove, boiler, fridge, kitchen. But I recommend: a critical eye, don't choose a camper because it has a display case for glasses, but for the convenience of the dinette, for the internal layout, for the air distribution, for the complete systems and for what you consider important. One last thing: don't go overboard with the comparisons, otherwise you risk never deciding.
But where can you get a personal impression?