First you need to consider what your clients will want.
LA Tan do a range of solutions from 8% up to 20% where Fresh indulgence only go up to an 11% or 11.5% (depending on which solution you choose).
Will your clients want a darker tan? If so, will you want to buy in solutions from 2 different brands to suit these clients or just go with 1 brand that caters for all your clients needs?
I tried Caribean Indulgence & Revive and liked the tans and planned to stock Revive but found my clients always chose LA Tan over it so I decided to stick to 1 brand catering for those who wanted a light tan and a dark tan so that I could get the best prices on my solution and have just 1 supplier (the more you buy in 1 transaction the cheaper it is with LA Tan & their offers make it a great priced solution too).
The guide colour of the solutions is also important as a beginner seeing where you have or have not sprayed is important.
Fresh indulgence's solutions have light guides that could be difficult to see as Fresh Indulgence prefer their guide to look as near to the tans actual colour as they can (meaning a 7% or 7.5% is very light and there is not much difference to the actual skin colour of some clinets when spraying on).
LA Tans guide colour is double dipped (NOT the Gold) so this means it is much easier to see where you have sprayed and where you have missed when learning and although it is dark when you get used to your routine and have learned to set the gun correctly then it's not so dark that clients dislike it or feel uncomfortable walking out in it after being sprayed (all my clients love the guide colour lol).
Other than those 2 basic questions - what will your clients want? and will you be ok with a light guide while you learn? - then the actual tans were both fine and lasted well, and faded well on my models.
I thought the anti-aging of Revive would be a great selling point but had no-one enquired about it at all in my first 6 months while I advertised it alongside LA Tan (my clients wanted the darker percents offered by LA Tan everytime).