SuzyQ
I had the same situation with space limitations. It tooks months of planning and checking out spa's before I found one that would fit the space and, felt like I was in a spa that had good jet action.
I wet tested the Solana- Positives- A great massage for such a little tub, seat depth fine for me (I'm 5'3"), nice foot jet, comfortable all the way around, less water to fill it than most other spa's, resonable price. Minus- Not very deep for taller folks (my friend 6' had to scrunch down to get full back massage), only has 1 year warranty. Also, I didn't like the way you have to crawl over one another to change seats. If you are the primary user that should not pose a problem.
Over all, I would say it's a nice little hot tub backed by a reputable company.
As always TEST SOAK!!! before you purchase.
Look over your space again. I was sure I didn't have the space for anything other than a pie wedge shape. Turns out, with a redesign of my space, I could fit other spa's in my corner, even with the cover lifter.
Coleman, Artesian, Watkins Hot Spot & Tiger River have some really nice smaller spas that may work for you. Hot Springs Jetsetter is also smaller in width. I tried all of these mentioned before my purchase. Good Luck in your search.