iRobot Roomba j7 (7150) Wi-Fi Connected Robot Vacuum

I bought this vacuum and decided to wait about a year before writing a review. I wanted to make sure I got time to get to know my new j7, who would be joining the household lineup with my old i7. Truth be told, I was intrigued by the j7 and its P.O.O.P. guarantee (I have a cat) and the thought of a Roomba running over pet accidents during a job is a thing of nightmares. So what do I think about the j7 after a year of use? I think it has a P.O.O.P. guarantee because it is a piece of **** (i.e., it takes a piece of poop to know what poop is). Seriously, this Roomba makes my i7 look like an Einsteinian-level genius. Don't get me wrong, the j7 started out great, but then, well, it started acting like a college student on Friday nights with quarter draws. Eventually, after mapping out the floor and running jobs about 10 times, the vacuum would start a job and just randomly go about hitting objects like the aforementioned drunken college student. Then, for no apparent reason, it would vacuum the same spot 25+ times. One time, it vacuumed the same stretch of carpet for 2 hours (I was out of the house for that one). Okay, so maybe it just needed a system restore and reset, right? Maybe the Roomba just got a little stressed and needed a reboot (hey, we all need one once a awhile, why not my j7?) After the reset, the Roomba did its new mapping and did the jobs at an acceptable level for about three times. Now, it's back to its old ways. Presently, it has completely forgotten how to get into our bedroom, despite having a clearer pathway to said bedroom than an airport runway. Moreover, it has completely forgotten where the doorway to the bedroom is located, despite going through said doorway multiple times. Rather, it now assumes that the way into the bedroom is through a wall about 12 feet from the doorway. Upon discovering that it is a tangle piece of matter that must obey the laws of physics (and, therefore, cannot traverse through a physical barrier), it merely gives up and sulks at his base (if it can find the base). All-in-all, I would say the j7 is like a drunken college student that has maturity issues. Oh sure, you can expect it to do its job once in awhile, but you also expect it will act erratically, run into various random objects, and will give up doing the job at a moments' notice. I would not recommend this vacuum. Don't be tempted by the P.O.O.P. guarantee. It's not worth it.