Google Project Fi is fighting for a spot in the already congested wireless networks’ industry that is dominated by the likes of Verizon, AT&T, T-Mobile, Sprint and U.S. Cellular.

In order to make its presence felt, Project Fi had a plan and so far, so good. When the search engine giant launched the MVNO two years ago, it positioned it as the most affordable wireless carrier that anyone using Verizon, AT&T, T-Mobile or Sprint could turn to and save a lot in terms of monthly plans. Look around you and for sure you’ll find happy users of Fi with testimonies of how they’ve saved a fortune in the few months they’ve been using the Google-owned carrier. Even though this is possible, there has always been one problem with using Fi – a problem that if solved would make the carrier the best in the U.S.

Of course, we all know using Project Fi needs you to purchase one of those costly Google Pixel phones, especially now that the Nexuses are no more. However, Google has worked to solve this problem by releasing the Moto X4 Android One phone to help fill the gap left behind by the Nexuses. There’s word that more Android One phones will be joining the party, but we still don’t when this will be happening. This solves one problem, but it’s not the only problem.

Google Project Fi users will tell you about how wonderful the carrier is. They only pay $30 per month for phone and data plans, the seamless switching between Wi-Fi hotspots and mobile data has helped them save a lot of money on a monthly basis, they can enjoy the services of Fi in more than 135 countries across the globe, the group plans are very affordable and so on. While most of these benefits will hold no matter the circumstances, the aspect of spending only $30 per month is not true for every Fi user and I’ll tell you why.

In order to make unlimited phone calls and send messages through Project Fi, you only need $20 per month. Add $10 on top of this and you get 1GB of data for a month. If you are not a heavy user, it’s possible this GB of data won’t be over after 30 days. Rather than expiring, the remaining data will be carried forward, where you’ll pay less the equivalent amount for your next monthly plan. Now, assuming you are a heavy user, the extra data used above the default 1GB will be computed with respect to the $10/GB rate. Thus, if you use an extra 1GB (a total of 2GB), you’ll pay $40 in total. In case of 3GB in total, you’ll pay $50 at the end of the month.

When compared to other carriers, Google Project Fi is the most expensive when it comes to data plans. From the above example, it means that when you pay $50 per month on Fi, you get unlimited calls and texts alongside 3GB of data. On Sprint, for instance, you can get an unlimited plan for the same amount, however, the internet speeds will be throttled once your usage hits 23GB, which is still more than 7x what Fi has to offer. Verizon, AT&T and T-Mobile also offer unlimited plans with data caps of 22GB on the former two and up to 30GB on the latter. However, you need at least $60 on AT&T, $70 on T-Mobile and $75 on Verizon to get these plans, which is still way better than Fi, if you ask me.

So, if you are a heavy data user and you rarely spend most of your time around open Wi-Fi hotspots, you may find that Google Project Fi isn’t what you thought it was. The only way you can get the best out of Fi is if you have Wi-Fi at work, home, and most of the places you visit, including overseas. Whether Google will make changes to its data plans remains unknown, but if it did, Project Fi would for sure become the best.

Would you like to see Google Project Fi get new data plans? Let us know in your comments below.