I did a lot of research including browsing these forums a lot even before I got my 5 month old. Despite being a herding dog, it seemed to be the most compatible out of my favorite breeds and I've wanted one ever since I worked at a dog hotel five years ago. After seeing online that people have been successful with them in apartments, I decided to take the plunge. I originally was only looking for an older Sheltie about 2-5 years old and was willing to wait for the right one. The rescues didn't have any and didn't consider apartment dwellers that seriously (I don't blame them!). I met a few different reputable breeders to network and to see if I matched well with their retiring show dogs who were about 8 years old. After questioning me, they each gave me their seal of approval and even said I would do well with a puppy as long as I exercised them. Not long after, I met my little one a couple of times. He lived with a lot of other Shelties and behaved better than almost all of them despite being younger. He was so calm, didn't chew on any wires or bark. I'm only starting my second week with my puppy but I feel regret. Part of it is probably the common puppy blues that many people get despite preparing a lot in advance. Another is that I feel that I overestimated how happy I could make him. I'm a single adult with a 8-5 job. I take him out on at least two walks a day plus during lunch since I work 8 minutes away. Two of the walks are usually 1-1.5 hours. He gets a little playtime in the living room when I can monitor him closely (his potty training regressed when he left his first home). He gets more exercise on the weekends. I don't feel like I'm doing enough. He's hard to tire out. He sleeps while I'm working so it's mismatch of energy when I come home. I still don't want to hire a dog walker but I haven't ruled them out. I realize now that he much prefers staying inside as he and his family were bred to be show dogs. He doesn't get excited for walks at all and has to be carried or coerced out. He LOVES running around my apartment and follows me everywhere. He's not shy and gets along with dogs but he appears to like people more. I had to work this Saturday and I checked the live stream of the daycare he was at and confirmed what the staff told me. He wasn't interested in other dogs that much. I saw him going up to the staff more, sitting and lying down next to them. His preference for staying indoors is also a potty training concern. He poops/pees on the grass fine, but right now I have to carry him out on a schedule otherwise he would use my floor as he did an hour ago. The biggest concern that I underestimated is his separation anxiety. He loves to sleep in his crate but hates when the door is closed, barking when he sees me. At his old home, he sometimes slept with the breeder's young assistant at night. I show him affection, but I don't coddle him so I don't worsen his separation anxiety when I'm away. I have to crate him otherwise he'll potty while I'm cooking or doing other chores. So without an extra set of eyes, I'm crating him more than I'd like to causing me guilt. I think I will take him to the daycare again this weekend to finally get my mounting chores done. They will stop taking him at 7 months unless he is neutered. Unfortunately, I don't plan on neutering him until he's at least one. But day care and dog walkers on a regular basis cost a pretty penny. We start obedience classes in a month. I'm wondering if I should wait a few more months after graduating before deciding that I should keep him. I'm already training him now. Raising him is a lot of work, but I expected this from my experience working with dogs. I think I might have picked the wrong breed despite researching them. If anyone has time, I'd appreciate some detailed advice, constructive criticism, stories..etc from owners who have Sheltie apartment experience. The posts I read here and Reddit were simply along the lines of "My Sheltie did fine in an apartment." Thanks!