Welcome to APC, The 150/152's are fine trainers. I had most of my primary training in a 150, and loved it. The biggest difference between a 150 and a 152 is that the 152 has slightly more power and 10 Deg. less Max flap angle. At that point in my life we could still fit two people in a 150 and still be under gross... In hindsight, I feel I was made a better pilot due do initially choosing the 150 over the more stable 172. I might recommend you do get checked out later in a 172 for your instrument flying and it is also nicer for taking friends for rides. Additionally, whichever you choose you are not checking another box... The quality of your primary flight instruction with heavily impact all your future flying. The skills you learned and honed in that 150 or whatever, will carry directly through to any aircraft you go on to fly in the future. It is very important to make sure you receive quality flight instruction, especially primary instruction. Also study your butt off; learn more than the minimum required. Good luck